NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10     
LAB: BIORELIANCE                                    BENZYLTRIMETHYL AMMONIUM CHLORIDE                          DATE: 10/25/04       
EXPERIMENT: 88139 TEST: 05                                                                                     TIME: 10:34:54       
TEST TYPE:  SUBCHRON 90-DAY                                                                                    PAGE:       1        
CONT: NO1-ES-15319                              ROUTE: GAVAGE                                                  NTP C#: 88139C       
PATHOLOGIST: MISSING                                                                                           CAS: 56-93-9         
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               REASONS FOR REMOVAL:    ALL                                                                                          
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
               REMOVAL DATE RANGE:     ALL                                                                                          
                                                                                                                                    
               TREATMENT GROUPS:       INCLUDE ALL                                                                                  
                                                                                                                                   
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10     
LAB: BIORELIANCE                                    BENZYLTRIMETHYL AMMONIUM CHLORIDE                          DATE: 10/25/04       
EXPERIMENT: 88139 TEST: 05                                                                                     TIME: 10:34:54       
TEST TYPE:  SUBCHRON 90-DAY                                                                                                         
CONT: NO1-ES-15319                              ROUTE: GAVAGE                                                  NTP C#: 88139C       
PATHOLOGIST: MISSING                                                                                           CAS: 56-93-9         
                                                                                                                                    
                                                                                                                                    
SUMMARY OF STATISTICALLY SIGNIFICANT (P<=.05) RESULTS                                                                               
IN THE ANALYSIS OF            BENZYLTRIMETHYL AMMONIUM CHLORI                                                                       
===============================================================                                                                     
Male Rats                                                                                                                           
------------                                                                                                                        
Organ                                 Morphology                                                                                    
-----                                 ----------                                                                                    
Lung                                   Inflammation Focal                                                                           
===============================================================                                                                     
Female Rats                                                                                                                         
------------                                                                                                                        
Organ                                  Morphology                                                                                   
-----                                  ----------                                                                                   
Uterus                                 Cyst                                                                                         
Uterus: Bilateral                      Cyst                                                                                         
===============================================================                                                                     
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 1       
Statistical Analysis of Non-neoplastic Lesions in        Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI           
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Heart                                                                                                                            | 
|     Inflammation Focal                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        8/10 (80%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         5/10 (50%)                       | 
|POLY-3 RATE (b)    |        8/10.00          0/0.00           0/0.00           0/0.00           5/10.00                          | 
|POLY-3 PERCENT (g) |        80.0%            0.0%             0.0%             0.0%             50.0%                            | 
|TERMINAL (d)       |        8/10 (80%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         5/10 (50%)                       | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.127N         P=1.000          P=1.000N         P=1.000          P=0.180N                         | 
|POLY 3             |        (e)              (e)              (e)              (e)              P=0.174N                         | 
|POLY 1.5           |        (e)              (e)              (e)              (e)              P=0.174N                         | 
|POLY 6             |        (e)              (e)              (e)              (e)              P=0.174N                         | 
|LOGISTIC REGRESSION|        P=0.127N         (e)              (e)              (e)              P=0.180N                         | 
|COCH-ARM / FISHERS |        P=0.121N         P=1.000          P=1.000          P=1.000          P=0.175N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Heart                                                                                                                            | 
|     Inflammation Focal                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        5/10 (50%)       0/0 (0%)         1/1 (100%)       0/0 (0%)         4/10 (40%)                       | 
|POLY-3 RATE (b)    |        5/10.00          0/0.00           1/1.00           0/0.00           4/9.18                           | 
|POLY-3 PERCENT (g) |        50.0%            0.0%             100.0%           0.0%             43.6%                            | 
|TERMINAL (d)       |        5/10 (50%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         4/8 (50%)                        | 
|FIRST INCIDENCE    |        92 (T)           ---              83               ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.548N         P=1.000          P=0.500          P=1.000N         P=0.678                          | 
|POLY 3             |        (e)              (e)              P=0.536          (e)              P=0.568N                         | 
|POLY 1.5           |        (e)              (e)              P=0.536          (e)              P=0.538N                         | 
|POLY 6             |        (e)              (e)              P=0.536          (e)              P=0.606N                         | 
|LOGISTIC REGRESSION|        P=0.448N         (e)              (e)              (e)              P=0.678                          | 
|COCH-ARM / FISHERS |        P=0.367N         P=1.000          P=0.545          P=1.000          P=0.500N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 2       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Inflammation Focal                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        4/10 (40%)       0/2 (0%)         0/0 (0%)         0/0 (0%)         5/10 (50%)                       | 
|POLY-3 RATE (b)    |        4/10.00          0/2.00           0/0.00           0/0.00           5/10.00                          | 
|POLY-3 PERCENT (g) |        40.0%            0.0%             0.0%             0.0%             50.0%                            | 
|TERMINAL (d)       |        4/10 (40%)       0/2 (0%)         0/0 (0%)         0/0 (0%)         5/10 (50%)                       | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.315          P=0.397N         P=1.000N         P=1.000          P=0.500                          | 
|POLY 3             |        (e)              P=0.396N         (e)              (e)              P=0.500                          | 
|POLY 1.5           |        (e)              P=0.396N         (e)              (e)              P=0.500                          | 
|POLY 6             |        (e)              P=0.396N         (e)              (e)              P=0.500                          | 
|LOGISTIC REGRESSION|        P=0.315          (e)              (e)              (e)              P=0.500                          | 
|COCH-ARM / FISHERS |        P=0.311          P=0.424N         P=1.000          P=1.000          P=0.500                          | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Inflammation Focal                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        5/10 (50%)       0/1 (0%)         0/1 (0%)         0/0 (0%)         4/10 (40%)                       | 
|POLY-3 RATE (b)    |        5/10.00          0/1.00           0/0.73           0/0.00           4/9.18                           | 
|POLY-3 PERCENT (g) |        50.0%            0.0%             0.0%             0.0%             43.6%                            | 
|TERMINAL (d)       |        5/10 (50%)       0/1 (0%)         0/0 (0%)         0/0 (0%)         4/8 (50%)                        | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.536          P=0.536N         P=1.000N         P=1.000N         P=0.678                          | 
|POLY 3             |        (e)              P=0.536N         P=0.623N         (e)              P=0.568N                         | 
|POLY 1.5           |        (e)              P=0.536N         P=0.583N         (e)              P=0.538N                         | 
|POLY 6             |        (e)              P=0.536N         P=0.685N         (e)              P=0.606N                         | 
|LOGISTIC REGRESSION|        P=0.536          (e)              (e)              (e)              P=0.678                          | 
|COCH-ARM / FISHERS |        P=0.502N         P=0.545N         P=0.545N         P=1.000          P=0.500N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 3       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Inflammation Focal                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        6/10 (60%)       0/0 (0%)         0/0 (0%)         1/10 (10%)       5/10 (50%)                       | 
|POLY-3 RATE (b)    |        6/10.00          0/0.00           0/0.00           1/10.00          5/10.00                          | 
|POLY-3 PERCENT (g) |        60.0%            0.0%             0.0%             10.0%            50.0%                            | 
|TERMINAL (d)       |        6/10 (60%)       0/0 (0%)         0/0 (0%)         1/10 (10%)       5/10 (50%)                       | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              92 (T)           92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.411N         P=1.000N         P=1.000N         P=0.034N*        P=0.500N                         | 
|POLY 3             |        (e)              (e)              (e)              P=0.018N*        P=0.500N                         | 
|POLY 1.5           |        (e)              (e)              (e)              P=0.018N*        P=0.500N                         | 
|POLY 6             |        (e)              (e)              (e)              P=0.018N*        P=0.500N                         | 
|LOGISTIC REGRESSION|        P=0.411N         (e)              (e)              P=0.034N*        P=0.500N                         | 
|COCH-ARM / FISHERS |        P=0.410N         P=1.000          P=1.000          P=0.029N*        P=0.500N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Inflammation Focal                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        3/10 (30%)       0/0 (0%)         1/1 (100%)       3/10 (30%)       6/10 (60%)                       | 
|POLY-3 RATE (b)    |        3/10.00          0/0.00           1/1.00           3/10.00          6/10.00                          | 
|POLY-3 PERCENT (g) |        30.0%            0.0%             100.0%           30.0%            60.0%                            | 
|TERMINAL (d)       |        3/10 (30%)       0/0 (0%)         0/0 (0%)         3/10 (30%)       4/8 (50%)                        | 
|FIRST INCIDENCE    |        92 (T)           ---              83               92 (T)           70                               | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.070          P=1.000N         P=0.500          P=0.683          P=0.133                          | 
|POLY 3             |        (e)              (e)              P=0.384          P=0.678          P=0.186                          | 
|POLY 1.5           |        (e)              (e)              P=0.384          P=0.678          P=0.186                          | 
|POLY 6             |        (e)              (e)              P=0.384          P=0.678          P=0.186                          | 
|LOGISTIC REGRESSION|        P=0.070          (e)              (e)              P=0.683          (e)                              | 
|COCH-ARM / FISHERS |        P=0.160          P=1.000          P=0.364          P=0.686N         P=0.185                          | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 4       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose                                                                                                                             | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        2/10 (20%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         0/10 (0%)                        | 
|POLY-3 RATE (b)    |        2/10.00          0/0.00           0/0.00           0/0.00           0/10.00                          | 
|POLY-3 PERCENT (g) |        20.0%            0.0%             0.0%             0.0%             0.0%                             | 
|TERMINAL (d)       |        2/10 (20%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         0/10 (0%)                        | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              ---                              | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.138N         P=1.000N         P=1.000N         P=1.000N         P=0.234N                         | 
|POLY 3             |        (e)              (e)              (e)              (e)              P=0.227N                         | 
|POLY 1.5           |        (e)              (e)              (e)              (e)              P=0.227N                         | 
|POLY 6             |        (e)              (e)              (e)              (e)              P=0.227N                         | 
|LOGISTIC REGRESSION|        P=0.138N         (e)              (e)              (e)              (e)                              | 
|COCH-ARM / FISHERS |        P=0.132N         P=1.000          P=1.000          P=1.000          P=0.237N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose                                                                                                                             | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        0/10 (0%)        0/0 (0%)         0/0 (0%)         0/0 (0%)         0/10 (0%)                        | 
|POLY-3 RATE (b)    |        0/10.00          0/0.00           0/0.00           0/0.00           0/9.18                           | 
|POLY-3 PERCENT (g) |        0.0%             0.0%             0.0%             0.0%             0.0%                             | 
|TERMINAL (d)       |        0/10 (0%)        0/0 (0%)         0/0 (0%)         0/0 (0%)         0/8 (0%)                         | 
|FIRST INCIDENCE    |        ---              ---              ---              ---              ---                              | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        (e)              (e)              (e)              (e)              (e)                              | 
|POLY 3             |        (e)              (e)              (e)              (e)              (e)                              | 
|POLY 1.5           |        (e)              (e)              (e)              (e)              (e)                              | 
|POLY 6             |        (e)              (e)              (e)              (e)              (e)                              | 
|LOGISTIC REGRESSION|        (e)              (e)              (e)              (e)              (e)                              | 
|COCH-ARM / FISHERS |        (e)              (e)              (e)              (e)              (e)                              | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 5       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Hematopoietic Cell Proliferation                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        3/10 (30%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         4/10 (40%)                       | 
|POLY-3 RATE (b)    |        3/10.00          0/0.00           0/0.00           0/0.00           4/10.00                          | 
|POLY-3 PERCENT (g) |        30.0%            0.0%             0.0%             0.0%             40.0%                            | 
|TERMINAL (d)       |        3/10 (30%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         4/10 (40%)                       | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.410          P=1.000N         P=1.000N         P=1.000N         P=0.500                          | 
|POLY 3             |        (e)              (e)              (e)              (e)              P=0.500                          | 
|POLY 1.5           |        (e)              (e)              (e)              (e)              P=0.500                          | 
|POLY 6             |        (e)              (e)              (e)              (e)              P=0.500                          | 
|LOGISTIC REGRESSION|        P=0.410          (e)              (e)              (e)              P=0.500                          | 
|COCH-ARM / FISHERS |        P=0.407          P=1.000          P=1.000          P=1.000          P=0.500                          | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Hematopoietic Cell Proliferation                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        1/10 (10%)       0/0 (0%)         1/1 (100%)       0/0 (0%)         0/10 (0%)                        | 
|POLY-3 RATE (b)    |        1/10.00          0/0.00           1/1.00           0/0.00           0/9.18                           | 
|POLY-3 PERCENT (g) |        10.0%            0.0%             100.0%           0.0%             0.0%                             | 
|TERMINAL (d)       |        1/10 (10%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         0/8 (0%)                         | 
|FIRST INCIDENCE    |        92 (T)           ---              83               ---              ---                              | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.306N         P=1.000          P=0.500          P=1.000          P=0.545N                         | 
|POLY 3             |        (e)              (e)              P=0.146          (e)              P=0.517N                         | 
|POLY 1.5           |        (e)              (e)              P=0.146          (e)              P=0.510N                         | 
|POLY 6             |        (e)              (e)              P=0.146          (e)              P=0.527N                         | 
|LOGISTIC REGRESSION|        P=0.157N         (e)              (e)              (e)              (e)                              | 
|COCH-ARM / FISHERS |        P=0.235N         P=1.000          P=0.182          P=1.000          P=0.500N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 6       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: Follicle                                                                                                          | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        2/10 (20%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         1/10 (10%)                       | 
|POLY-3 RATE (b)    |        2/10.00          0/0.00           0/0.00           0/0.00           1/10.00                          | 
|POLY-3 PERCENT (g) |        20.0%            0.0%             0.0%             0.0%             10.0%                            | 
|TERMINAL (d)       |        2/10 (20%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         1/10 (10%)                       | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.380N         P=1.000N         P=1.000N         P=1.000N         P=0.500N                         | 
|POLY 3             |        (e)              (e)              (e)              (e)              P=0.500N                         | 
|POLY 1.5           |        (e)              (e)              (e)              (e)              P=0.500N                         | 
|POLY 6             |        (e)              (e)              (e)              (e)              P=0.500N                         | 
|LOGISTIC REGRESSION|        P=0.380N         (e)              (e)              (e)              P=0.500N                         | 
|COCH-ARM / FISHERS |        P=0.377N         P=1.000          P=1.000          P=1.000          P=0.500N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: Follicle                                                                                                          | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        1/10 (10%)       0/0 (0%)         0/1 (0%)         0/0 (0%)         0/10 (0%)                        | 
|POLY-3 RATE (b)    |        1/10.00          0/0.00           0/0.73           0/0.00           0/9.18                           | 
|POLY-3 PERCENT (g) |        10.0%            0.0%             0.0%             0.0%             0.0%                             | 
|TERMINAL (d)       |        1/10 (10%)       0/0 (0%)         0/0 (0%)         0/0 (0%)         0/8 (0%)                         | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              ---                              | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.348N         P=1.000N         P=1.000N         P=1.000N         P=0.545N                         | 
|POLY 3             |        (e)              (e)              P=0.923N         (e)              P=0.517N                         | 
|POLY 1.5           |        (e)              (e)              P=0.919N         (e)              P=0.510N                         | 
|POLY 6             |        (e)              (e)              P=0.930N         (e)              P=0.527N                         | 
|LOGISTIC REGRESSION|        P=0.348N         (e)              (e)              (e)              (e)                              | 
|COCH-ARM / FISHERS |        P=0.310N         P=1.000          P=0.909N         P=1.000          P=0.500N                         | 
|ORDER RESTRICTED   |        (e)              (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 7       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |                                                                                                             | 
|POLY-3 RATE (b)    |                                                                                                             | 
|POLY-3 PERCENT (g) |                                                                                                             | 
|TERMINAL (d)       |                                                                                                             | 
|FIRST INCIDENCE    |                                                                                                             | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |                                                                                                             | 
|POLY 3             |                                                                                                             | 
|POLY 1.5           |                                                                                                             | 
|POLY 6             |                                                                                                             | 
|LOGISTIC REGRESSION|                                                                                                             | 
|COCH-ARM / FISHERS |                                                                                                             | 
|ORDER RESTRICTED   |                                                                                                             | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        0/10 (0%)        2/2 (100%)       0/1 (0%)         1/1 (100%)       0/10 (0%)                        | 
|POLY-3 RATE (b)    |        0/10.00          2/2.00           0/0.73           1/1.00           0/9.18                           | 
|POLY-3 PERCENT (g) |        0.0%             100.0%           0.0%             100.0%           0.0%                             | 
|TERMINAL (d)       |        0/10 (0%)        2/2 (100%)       0/0 (0%)         1/1 (100%)       0/8 (0%)                         | 
|FIRST INCIDENCE    |        ---              92 (T)           ---              92 (T)           ---                              | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.373N         P=0.010 *        (e)              P=0.077          (e)                              | 
|POLY 3             |        P<0.001N**       P=0.015N*        (e)              P=0.091N         (e)                              | 
|POLY 1.5           |        P<0.001N**       P=0.015N*        (e)              P=0.091N         (e)                              | 
|POLY 6             |        P<0.001N**       P=0.015N*        (e)              P=0.091N         (e)                              | 
|LOGISTIC REGRESSION|        (e)              P=0.010 *        (e)              P=0.077          (e)                              | 
|COCH-ARM / FISHERS |        P=0.311N         P=0.015 *        (e)              P=0.091          (e)                              | 
|ORDER RESTRICTED   |        P=0.011 *        (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 8       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Dilatation                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |                                                                                                             | 
|POLY-3 RATE (b)    |                                                                                                             | 
|POLY-3 PERCENT (g) |                                                                                                             | 
|TERMINAL (d)       |                                                                                                             | 
|FIRST INCIDENCE    |                                                                                                             | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |                                                                                                             | 
|POLY 3             |                                                                                                             | 
|POLY 1.5           |                                                                                                             | 
|POLY 6             |                                                                                                             | 
|LOGISTIC REGRESSION|                                                                                                             | 
|COCH-ARM / FISHERS |                                                                                                             | 
|ORDER RESTRICTED   |                                                                                                             | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Dilatation                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        2/10 (20%)       0/2 (0%)         0/1 (0%)         0/1 (0%)         2/10 (20%)                       | 
|POLY-3 RATE (b)    |        2/10.00          0/2.00           0/0.73           0/1.00           2/9.18                           | 
|POLY-3 PERCENT (g) |        20.0%            0.0%             0.0%             0.0%             21.8%                            | 
|TERMINAL (d)       |        2/10 (20%)       0/2 (0%)         0/0 (0%)         0/1 (0%)         2/8 (25%)                        | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.462          P=0.630N         P=1.000N         P=0.795N         P=0.621                          | 
|POLY 3             |        P=0.507          P=0.627N         P=0.816N         P=0.786N         P=0.671                          | 
|POLY 1.5           |        P=0.519          P=0.627N         P=0.802N         P=0.786N         P=0.685                          | 
|POLY 6             |        P=0.490          P=0.627N         P=0.836N         P=0.786N         P=0.652                          | 
|LOGISTIC REGRESSION|        P=0.462          (e)              (e)              (e)              P=0.621                          | 
|COCH-ARM / FISHERS |        P=0.539          P=0.682N         P=0.818N         P=0.818N         P=0.709N                         | 
|ORDER RESTRICTED   |        P=0.489          (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 9       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus: Bilateral                                                                                                                | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |                                                                                                             | 
|POLY-3 RATE (b)    |                                                                                                             | 
|POLY-3 PERCENT (g) |                                                                                                             | 
|TERMINAL (d)       |                                                                                                             | 
|FIRST INCIDENCE    |                                                                                                             | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |                                                                                                             | 
|POLY 3             |                                                                                                             | 
|POLY 1.5           |                                                                                                             | 
|POLY 6             |                                                                                                             | 
|LOGISTIC REGRESSION|                                                                                                             | 
|COCH-ARM / FISHERS |                                                                                                             | 
|ORDER RESTRICTED   |                                                                                                             | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus: Bilateral                                                                                                                | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        0/10 (0%)        2/2 (100%)       0/1 (0%)         1/1 (100%)       0/10 (0%)                        | 
|POLY-3 RATE (b)    |        0/10.00          2/2.00           0/0.73           1/1.00           0/9.18                           | 
|POLY-3 PERCENT (g) |        0.0%             100.0%           0.0%             100.0%           0.0%                             | 
|TERMINAL (d)       |        0/10 (0%)        2/2 (100%)       0/0 (0%)         1/1 (100%)       0/8 (0%)                         | 
|FIRST INCIDENCE    |        ---              92 (T)           ---              92 (T)           ---                              | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.373N         P=0.010 *        (e)              P=0.077          (e)                              | 
|POLY 3             |        P<0.001N**       P=0.015N*        (e)              P=0.091N         (e)                              | 
|POLY 1.5           |        P<0.001N**       P=0.015N*        (e)              P=0.091N         (e)                              | 
|POLY 6             |        P<0.001N**       P=0.015N*        (e)              P=0.091N         (e)                              | 
|LOGISTIC REGRESSION|        (e)              P=0.010 *        (e)              P=0.077          (e)                              | 
|COCH-ARM / FISHERS |        P=0.311N         P=0.015 *        (e)              P=0.091          (e)                              | 
|ORDER RESTRICTED   |        P=0.011 *        (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  10/25/04                           EXPERIMENT: 88139 TEST: 05                                            Page 10      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -             BENZYLTRIMETHYL AMMONIUM CHLORI            
                                         Terminal Sacrifice at 14 weeks                                                             
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Males                                                  | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus: Bilateral                                                                                                                | 
|     Dilatation                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |                                                                                                             | 
|POLY-3 RATE (b)    |                                                                                                             | 
|POLY-3 PERCENT (g) |                                                                                                             | 
|TERMINAL (d)       |                                                                                                             | 
|FIRST INCIDENCE    |                                                                                                             | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |                                                                                                             | 
|POLY 3             |                                                                                                             | 
|POLY 1.5           |                                                                                                             | 
|POLY 6             |                                                                                                             | 
|LOGISTIC REGRESSION|                                                                                                             | 
|COCH-ARM / FISHERS |                                                                                                             | 
|ORDER RESTRICTED   |                                                                                                             | 
|=================================================================================================================================| 
|                   |                                                                                                             | 
|                   |                                                      Females                                                | 
|Dose               |        CONTROL          12.5             25.0             50.0             100.0                            | 
|                   |                         MG/KG            MG/KG            MG/KG            MG/KG                            | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus: Bilateral                                                                                                                | 
|     Dilatation                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                                                                             | 
|-----------        |                                                                                                             | 
|OVERALL (a)        |        2/10 (20%)       0/2 (0%)         0/1 (0%)         0/1 (0%)         2/10 (20%)                       | 
|POLY-3 RATE (b)    |        2/10.00          0/2.00           0/0.73           0/1.00           2/9.18                           | 
|POLY-3 PERCENT (g) |        20.0%            0.0%             0.0%             0.0%             21.8%                            | 
|TERMINAL (d)       |        2/10 (20%)       0/2 (0%)         0/0 (0%)         0/1 (0%)         2/8 (25%)                        | 
|FIRST INCIDENCE    |        92 (T)           ---              ---              ---              92 (T)                           | 
|-------------------|                                                                                                             | 
|STATISTICAL TESTS  |                                                                                                             | 
|-------------------|                                                                                                             | 
|LIFE TABLE         |        P=0.462          P=0.630N         P=1.000N         P=0.795N         P=0.621                          | 
|POLY 3             |        P=0.507          P=0.627N         P=0.816N         P=0.786N         P=0.671                          | 
|POLY 1.5           |        P=0.519          P=0.627N         P=0.802N         P=0.786N         P=0.685                          | 
|POLY 6             |        P=0.490          P=0.627N         P=0.836N         P=0.786N         P=0.652                          | 
|LOGISTIC REGRESSION|        P=0.462          (e)              (e)              (e)              P=0.621                          | 
|COCH-ARM / FISHERS |        P=0.539          P=0.682N         P=0.818N         P=0.818N         P=0.709N                         | 
|ORDER RESTRICTED   |        P=0.489          (e)              (e)              (e)              (e)                              | 
|=================================================================================================================================| 
(a)  Number of tumor-bearing animals /  number of animals examined at site.                                                         
(b)  Number of tumor-bearing animals / Poly-3 number                                                                                
                                                                                                                                   
(d)  Observed incidence at terminal kill.                                                                                           
(f)  Beneath the control incidence are the P-values associated with the trend                                                       
test.  Beneath the dosed group incidence are the P-values corresponding to                                                          
pairwise comparisons between the controls and that dosed group.  The life                                                           
table analysis regards tumors in animals dying prior to  terminal kill as                                                           
 being (directly or indirectly) the cause of death.                                                                                 
Logistic regression is an alternative                                                                                               
 method for analyzing the incidence of non-fatal tumors. The Cochran-Armitage                                                       
and Fishers exact tests compare directly the overall incidence rates                                                                
For all tests a negative trend is indicated by N                                                                                    
(e)  Value of Statistic cannot be computed.                                                                                         
(g)  Poly-3 adjusted lifetime tumor incidence.                                                                                      
(I)  Interim sacrifice                                                                                                              
(T)  Terminal sacrifice                                                                                                             
#   Tumor rates based on number of animals necropsied.                                                                              
*   To the right of any statistical result, indicates significance at (P<=0.05).                                                    
**  To the right of any statistical result, indicates significance at (P<=0.01).