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ZlOZ Z t d3S 

Document Control Office (7407 M) 

Office of Pollution Prevention and Taxies (OPPT) 

Environmental Protection Agency 

EPA East Building, Room E6428 (202-564-8930} 

1201 Constitution Avenue, NW 

Washington, DC 20460 

Attention: TSCA Section 4 

Docket 10 Number EPA-HQ-OPPT-2009-0112 

To Whom It May Concern: 

M !C=JI= 3l/ !' c:< 5 d. 

AisOCMA 

Society of Chemiol Manufacturers & Affiliates 

August29, 2012 

RE: Proposed Test Plan; Testing of Certain High Production Volume Chemicals; Third 

Group of Chemicals. Federal Register 76 (204), 65385-65410, October 21, 2011. 

1-Propanesulfonic acid, 2-hydroxy-3-(2-propen-1-yloxy)-, sodium salt (1 :1) (CAS 

No. 52556-42-0) 

The COPS-1 Consortium, a cost-sharing consortium formed and managed under the Society of 

Chemical Manufacturers and Affiliates (SOCMA) submits this test plan to satisfy the testing 

requirements of the subject test rule for 1-propanesulfonic acid, 2-hydroxy-3-(2-propen-1-yloxy)-

, sodium salt (1:1) (CAS No. 52556-42-0), also known as COPS-1. 

The consortium agrees to conduct the following studies or provide read across data on 

appropriate compounds that can be bridged to satisfy one or more of the requirements in 

compliance with the test rule and according to current OPPTS Harmonized Guidelines. 

Test Facility 

The COPS-1 Consortium has entered a contract to perform the studies outlined in this test plan 

at the following testing laboratory; 

WIL Research Europe 

Hambakenwetering 7 

5231 DO 's-Hertogenbosch 

The Netherlands 

Phone: +31 (0) 73 640 6700 

Fax: +31 (0) 73 640 6799 

www.wilresearch.com 

1111111111111111111111111111111111111111111111111111111111111111 

40120000085 

CONTAINS NO CBI 

6• ~ ChemStewards' 

APROGAAMOf SOCMA i BSO 1"1 S! f,JVy Su!lC 700 • W;JSII:ngtcm DC 20036 .S81 0 • Tel 202 72 I 41 OC • FJx. 202-296-8120 • www socma.(Oill 
SOCMA 

Test Material 

Identification: 

The test item will be a typical commercial product as supplied by a member of the Consortium 

with details of purity and known properties. The integrity of data supplied relating to the 

identification, purity and stability of the test item will be the responsibility of the Sponsor. 

Storage: 

The test item will be stored at room temperature, in the dark, unless otherwise specified by the 

Sponsor. 

Analysis: 

Details of identification of the test item will be supplied by the study Sponsor. The test item 

formulations will be analyzed for concentration and stability by WIL Research Europe, 'sHertogenbosch, the Netherlands. 

Physical/Chemical Properties To Fulfill Testing Requirements A 1 to 5 

1. Melting point: EC A.1 I OECD 102 I OPPTS 830.7200 or, if a freezing point: OECD 102 

(melting poinUmelting range). 

2. Boiling point: EC A.2 I OECD 103 I OPPTS 830.7220 

3. Vapor Pressure: ASTM E 1782-08 (thermal analysis) 

4. N-Octanol/water partition coefficient (log 10 basis) or logK0w by appropriate method as 

specified as Method A, 40 CFR 799.6755 (shake flask); Method B, ASTM E 1147-92 

(reapproved 2005) (liquid chromatography); or Method C, 40 CFR 799.6756 (generator 

column). 

A test to determine the octanol/water partition coefficient is not required when the 

estimated log Kow (the log of the octanol/water partitioning coefficient) of the chemical is 

< 0. We have determined that the log Kow (also known as the log P) for COPS-1 is< 0. 

Please refer to Attachment A for detailed results of the estimation methodology used. 

5. Water solubility: By appropriate test method as specified as Method A, ASTM E 1148-

02 (reapproved 2008) (shake flask); Method B, 40 CFR 799.6784 (shake flask); Method 

C, 40 CFR 799.6784 (column elution); or Method D, 40 CFR 799.6786 (generator 

column). 

Environmental Fate and Pathways to Fulfill Testing Requirement B 

1. Environmental fate and pathways - ready biodegradation: According to ISO 

10634: 1995(E) guidance by one of the following: 1) ISO 9439: 1999(E) (C02 evolution 

test); or 2) ISO 10707: 1994(E) (closed bottle test) 

Aquatic Toxicity- to Fulfill Testing Requirement C1 as a Test Group 1 Substance 

Based upon the estimated log Kow (the log of the octanol/water partitioning coefficient) 

of COPS-1 being< 4.2 {please refer to Attachment A for results). We intend to perform 

aquatic toxicity Test Group 1 as detailed below; 

..1 4• ChemStewards' 

APROGHAMOFSOCMA 18~0 M St r·~vV Si>tt. 700. \!'v'.r,fl,rJgtul1 DC 20036-SBI 0. Tel 202 721 4100. FJ:x 202-296-8120. www SOCi1l:l.COili 
1. Acute toxicity to fish, ASTM E 729-96 (reapproved 2007)/0PPTS 850.1075. 

2. Acute toxicity to Daphnia, ASTM E 729-96 (reapproved 2007)/0PPTS850.1 010 

3. Toxicity to plants (algae), ASTM E 1218-04e1/0PPTS850.5400 

Mammalian toxicity- acute- to Fulfill Testing Requirement D 

1. Acute (up/down) oral toxicity (rat), 40 CFR 799.911 O(d)(1 )(i)(A). 

Mammalian Toxicity- Genotoxicity To Fulfill Testing Requirement E1 and E2 

1. Gene Mutations: Bacterial Reverse Mutation Test (in vitro): 40 CFR 799.9510 

(OECD471) 

SOCMA 

2. Mammalian (chromosomal damage): In vitro mammalian chromosome aberration, 40 

CFR 799.9537 (OECD473) 

Mammalian Toxicity-Repeated Dose/Reproduction/Developmental to Fulfill Testing 

Requirement F1 

1. Combined repeated dose toxicity study with reproduction/developmental toxicity 

screening test, 40 CFR 799.9365/0PPTS 870.3650/0ECD422 

Initiation of the required testing is subject to Environmental Protection Agency's approval of the 

test plan offered in this letter. In order to begin testing as quickly as possible to help us meet 

the EPA's reporting deadline, we look forward to Agency feedback at your earliest opportunity. 

Please contact the undersigned directly at 202-721-4154 or helmest@socma.com for questions 

or additional information. 

Attachments: 

Sincerely, 

C. Tucker Helmes, Ph.D. 

Executive Director 

A) Rationale for waiving octanol/water partition coefficient testing for 1-Propanesulfonic 

acid, 2-hydroxy-3-(2-propenyloxy)-, monosodium salt (CASRN: 52556-42-0) 

""ChemStewards· 6: . PROGKAM Of SOCMA 18)0 M St NW s,, tc 700 • Wao,h,ngtol1 DC 20036-58 l 0 • 1 cl 202-72 I -4100 • Fax 202 296 8120 • NWW SO( nn com 
SOCMA 

ATTACHMENT A 

Rationale for waiving octanol/water partition coefficient testing for 1-Propanesulfonic 

acid, 2-hydroxy-3-(2-propenyloxy)-, monosodium salt (CASRN: 52556-42-0) 

Summary 

Per the EPA test rule for Certain High Production Volume Chemicals (Third Group of 

Chemicals), 1 the proposed tests for 1-Propanesulfonic acid, 2-hydroxy-3-(2-propenyloxy)-, 

monosodium salt (COPS-1) include determining the octanol/water partition coefficient (Test 

Category: Physical/Chemical Properties). However, a test to determine the octanol/water 

partition coefficient is not required when the estimated log Kow (the log of the octanol/water 

partitioning coefficient) of the chemical is < 0. We have determined that the log Kow (also 

known as the log P) for COPS-1 is< 0. 

Rationale 

EPA recommends that the octanol/water partition coefficient be estimated prior to initiating the 

proposed studies. One estimation method recommended by EPA1 is the application of the socalled atom/fragment contribution method as described by Meylan and Howard.2 This 

estimation methodology is incorporated into the computer program KOWWIN. KOWWIN (the 

Log Octanoi-Water Partition Coefficient Program) estimates the logarithmic octanol-water 

partition coefficient (log P) of organic compounds based on the molecular structure of the 

compound. 

Per KOWWIN (v 1.67), the estimated log Kow for COPS-1 is -5.00 (model results provided 

below). Thus, based on this estimate, and according to the criteria provided in the test rule, 1 we 

believe that conducting a test to determine the octanol/water partition coefficient for COPS-1 is 

not required. 

Log Kow(version .:..67 esti:nate): -5.00 

SMILES : S(=O) (=0) (O:Na])CC(O)COCC=C 

CHEM 1-Propa~esu.:.fonic acid, 2-hydroxy-3-(2-propenyloxy)-, mo~osodium salt 

MOL FOR: CE H11 05 s.:. Na1 

MOL WT : 218.20 

-------~-----+--------------------------------------------+---------+--------

TYPE ~~JM I LOGKOW FRAGMENT DESCR:PTION I COEFF I VALUE 

-------+-----+--------------------------------------------+---------+--------

Frag 3 I -CH:> [aliphatic carbon] I 0.4911 I 1.4733 

Frag 1 I -CH [aliphatic carbon] I 0. 3614 I 0. 3614 

Frag 1 I =CH2 [olefinic carbon] I 0. 5184 I 0. 52.84 

Frag 1 I =CH- or =C< :olefine carbo~] I 0.3836 I 0.3836 

Frag 1 I -OH [hydroxy, aliphatic attach] 1-1.4086 I -1.4086 

Frag 1 I -0- [oxygen, a.:.iphatic attach] 1-1.2566 I -1.2566 

Frag 1 I -502-0 [sulfonate, aliph att] 1-0.7250 I -0.7250 

Factor 1 I S-0-~Na,K,Li} [coef*(1+0.3*(NUM-1))] 1-4.5800 I -4.5800 

Const I Equation Constant I I 0.2290 

-------+-----+--------------------------------------------+---------+--------

Log Kow -5.0045 

1 Federal Register I Vol. 75, No. 37 I Thursday, February 25, 2010 I Proposed Rules. 2 Meylan, W.M. and Howard, P.H. Atom/Fragment Contribution Method for Estimating Octanoi-Water Partition Coefficients. Journal 

of Pharmaceutical Sciences. Vol. 84(1 ):83-92. 1995 . 

./. ChemStewa<ds' 

A PRoGRAM or SOCMA 1850 M St N\'V Su rc 700 • W,J<,h,ngtorL DC 20036- )81 0 • Tel 202 721-4100 • F;;x 202 296-8120 • www.socnn.ccrn