LREGISTRYSM (CAS REGISTRYSM Learning Database)
Subject
Coverage• All types of inorganic and organic substances, including alloys, coordination
compounds, minerals, mixtures, polymers, salts, high throughput screening (HTS)
compounds as well as nucleic acid and protein sequences• Substances included in LREGISTRY meet the following criteria:- Identified by CAS as coming from a reputable source, including but not limited topatents, journals, chemical catalogs, and selected substance collections on theweb- Described in largely unambiguous terms- Characterized by physical methods or described in a patent document example orclaim- Consistent with the laws of atomic covalent organization

File Type

Numeric, Structure

Features

Alerts (SDIs)

Not available

CAS Registry®
Number IdentifiersKeep & ShareSTN AnaVist™

Learning Database



SLART



STN Easy

RecordContent• CAS Registry Numbers• CA index names and commonly usedchemical names and trade names• Molecular formulas• Structure diagrams• Sequence data
• Alloy composition tables• Classes for polymers• Ring analysis data

File SizeMore than 124,578 records

Coverage

Selected from LCA and LCASREACT

Updates

None since it is a closed file.

Language

English

Database
Producer

Chemical Abstracts Service
2540 Olentangy River Road
P.O. Box 3012
Columbus, Ohio 43210-0012 USA
Phone: 800-753-4227 (North America)
Phone: 614-447-3700 (worldwide)Fax:
614-447-3751
Email: help@cas.org
Copyright Holder

®

®




• List of databases and regulatory listings
containing information on the substances

February 2016

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LREGISTRY

Sources

CASRNs from LCA and LCASREACT

User Aids• Online Helps (HELP DIRECTORY lists all help messages available)• STNGUIDE

Clusters• LEARNING
STN Database Clusters information (PDF).

RelatedDatabases

REGISTRY

PricingEnter HELP COST at an arrow prompt.

February 2016

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LREGISTRYSEARCH and DISPLAY Field Codes
Fields that allow left truncation (/CNS and /NTE) are marked with an asterisk (*).

Substance Data Fields
SearchCode

Search Field Name

Display
Codes

Search Examples

Basic Index (contains name fragments,
molecular formula fragments, andCollective Index codes) (1)None (or /BI)S TOSYLS DIMETHYL ADIPATE
S 6CI
S 1,1(W)DICHLOROS C5H10BR2O2

AF, CN, IN, MF

CAS Registry Number/RN

RN, AR, DR, PR

Class Identifier (codes or terms as abound phrase)
Component Registry Number
Definition
Deleted CAS Registry Number
Entry Date (2)Field Availability (codes or terms as abound phrase)
File Segment (acronyms or single
words)/CI

Polymer Class Term (code or text)/PCT

Registry Number Locator/LC

Replacing CAS Registry Number
Source of Registration
Update Date (2)

/RR
/SR
/UP

S 97-77-8/RN
S 97-77-8
S MXS/CI
S ALLOY/CI
S 79-10-7/CRN
S HYDROCARBONS/DEF
S 50-83-9/DR
S 1985/ED
S RSD/FA AND L5
S MATERIAL COMPOSITION/ FA
S PROTEIN/FSS PS/FS
S NUCLEIC/FSS POLYAMINE/PCTS PM/PCTS TSCA/LC
S GENBANK/LC
S L1 AND CA/LC
S 50-21-5/RR
S GENBANK/SR
S UP>=20040101

/CRN
/DEF
/DR
/ED
/FA
/FS

CI
CRN
DEF
DR
ED
Not displayed
FS

PCT
LC

RR
SR
Not displayed(1) Formula fragments searched in the Basic Index must be entered without spaces.
(2) Numeric search field that may be searched using numeric operators or ranges.

Nomenclature Fields
SearchCode

Search Field Name
Chemical Name

/CN

Chemical Name Segment * (1)/CNS

Heading Parent
Index Name Segment Heading Parent
Index Name Segment NonHeading Parent
Other Name Segment/HP/INS.HP/INS.NHP/ONS

Search Examples
S 1-CHLORO-1, 3-BUTADIENE/CNS INTERFERON .ALPHA.1?/CN
S GENBANK M12334/CN
S IMINO/CNSS ?QUAT?/CNS NOT AQUAS BENZOIC ACID/HP
S METHYLETHYL/INS.HP
S ACRYLO/INS.NHPS ANILINE/ONS

Display
Codes
CN, INCN, INCN, INCN, INCN, IN
CN(1) With left truncation, the input term must contain at least 4 characters.

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LREGISTRY

Molecular Formula Fields
SearchCode

Search Field Name
Atom Count (1)Element Count (1)Element Count for Substance (1)Element Formula (2)Element Ratio, xx (where xx = CH, CN, CO,
HC, HN, HO, NC, NH, NO, OC, OH, orON) (1)Element Symbol
Element Symbol for Multicomponent
FormulaFormula Weight (1)Material Composition (3)Molecular Formula (4)

/ATC
/ELC
/ELC.SUB/ELF/ELR.xx

Number of Components (1)Periodic Group

/NC
/PG

Relative Composition
Specific Element Count (1)/RC/Element Symbol/ELS/ELS.MCF
/FW
/MAC
/MF

Search Examples

DisplayCodes

S 5/ATC
S 7-9/ELCS ELC.SUB>=8
S AL CO LA O/ELF
S 3.1666667/ELR.CH
S 1-2/ELR.CNS ELR.CO<=1
S B/ELS AND H/ELSS (N (XA) P)/ELS.MCF

Not displayed
Not displayed
Not displayed
AF, MFNot displayed

S 420-460/FW
S 1-5 ND/MAC
S C7H3BR2FO2/MF
S C4H4O4.2NA/MF
S C24 H37 OS P3/MF
S F/ELS NOT NC>=2
S B6/PGS LNTH/PG
S FE.CR.NI/RC
S 7/SI

Not displayed
STR
AF, MFNot displayed
Not displayed

Not displayed
Not displayed
Not displayed
Not displayed(1) Numeric search field that may be searched using numeric operators or ranges.
(2) Formulas must be entered with spaces between the elements.
(3) Combined numeric and text field. Composition terms are numeric and may be searched using numeric operators or ranges. Component
terms are text terms.
(4) Formulas may be entered with or without spaces.

Limiting Search Codes
Search Field Name
Answers completely iterated
Answers incompletely iterated

SearchCode/COMPLETE (1)/INCOMPLETE (1)(1) The code may be abbreviated to the first three letters.
(2) Only an L-number for an answer set created in LREGISTRY may be limited.

February 2016

Search Examples
S L4/COM (2)S L4/INC (2)DisplayCode
Not displayed
Not displayed

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LREGISTRY

Ring Analysis Data Fields
SearchCode

Search Field Name

Search Examples

Display
Codes

Elemental Analysis for Ring System (andnumber of occurrences of EA in acomponent structure) (1)Elemental Analysis for Smallest Ring (andnumber of occurrences of EAS in a ringsystem) (1)Elemental Sequence for Ring System (andnumber of occurrences of ES in acomponent structure) (1)Elemental Sequence for Smallest Ring (andnumber of occurrences of ESS in a ringsystem) (1)
Number of Ring Systems (2)Number of Ring Systems in a Component(2)
Number of Rings (number of smallest rings)(2)
Number of Rings in a Component (numberof smallest rings) (2)
Number of Rings in Ring System (2)Ring Atom Count (2)Ring Element (and number of occurrencesof REL in a ring system) (1)Ring Element Count (2)Ring Elemental Formula (and number ofoccurrences of RELF in a component
structure) (1,3)
Ring Identifier (and number of occurrencesof RID in a component structure) (1)/EA

S C4N-C5N/EA
S 2 C3NO-C6/EA

RSD

/EAS

S C5NO4/EAS
S >9 C6/EAS

Not displayed/ES

S NCOC2-C6/ES
S 1-3 O2C4/ES

RSD, SRSD/ESS

S FE3/ESSS >=2 SC2SC2/ESS

Not displayed

/NRS
/CNRS

S 7/NRSS 4-5/CNRS

Not displayed
Not displayed/NR

S 10/NRNot displayed/CNR

S CNR>=12

Not displayed

/NRRS
/RATC
/REL

S 5-6/NRRS
S 4/RATCS SE/RELS 5 P/REL
S 6/RELCS C N O P/RELF
S >3 C N O/RELF

Not displayed
Not displayed
Not displayed

RSD, SRSD

Ring Size of Smallest Ring (and number ofoccurrences of SZS in a ring system)(1,2)
Ring System Formula (and number ofoccurrences of RF in a component
structure) (1)Size for the Ring System (and number ofoccurrences of SZ in a component
structure) (1)/SZSS 31779.1.2/RID
S 1938/RID
S >=2 1949.52/RID
S 8/SZS
S 5 4/SZS/RFS C20AGN4/RF
S 5 C10/RF

RSD

/SZ

S 3-4-5/SZ
S 3 5-5-6/SZ

RSD

/RELC
/RELF

/RID

Not displayed
Not displayed

Not displayed(1) The number of occurrences must be entered first in the search field. It is a numeric term and may be searched using numeric operators or
ranges.
(2) Numeric search field that may be searched using numeric operators or ranges.
(3) Formulas must be entered with spaces between the elements.

Sequence Fields
Search Field Name

SearchCode

Notes * (1)/NTE

Nucleic Acid Count (2,3)
Nucleic Acid Type (3)Sequence Length/NA.CNT/NA/SQL

Search Examples
S CYCLIC/NTE
S ?CHLORO?/NTE
S 12-42/NA.CNT
S 12-42 A/NA
S G/NAS SQL<=500

Display
Codes
NTE
NA
NA
SQL

(1) With left truncation, the input term must contain at least 4 characters.
(2) Numeric search field that may be searched using numeric operators or ranges.
(3) Field contains data only for nucleic acid sequences.
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LREGISTRY

Structure Search Terms
Terms(1)

Search Examples

L-numbers of structures built using the STRUCTURE command®
or uploaded from STN Express (Boolean logic allowed
between the L-numbers)
L-numbers of screen sets created using the SCREEN command(Boolean logic allowed between the L-numbers)
L-numbers of structures built using the STRUCTURE commandor uploaded from STN Express combined with L-numbers ofscreen sets created using the SCREEN command (Boolean
logic allowed between L-numbers)

SEARCH L1 FAM SAM
SEA L1 AND L2 SSS FUL
S L3 OR L4 SSS SAM
S L1 AND L2 NOT L3(1) The L-number answer set from a structure search may be combined with dictionary terms, e.g., S L3 AND TSCA/LC.

Types of Structure SearchingType
Substructure(default)
Closed Substructure

FamilyExact

Definition

Search CodeSearch for substances that match the query.
Substitution is allowed at all open positions.
Additional components may be retrieved.
Search for substances that match the query
exactly. Substitution is allowed at positions
opened by CONNECT. Additional
components may be retrieved.
Search for substances that match the query
exactly. Additional components may be
retrieved.
Search for substances that match the query
exactly.

SSS

CSS

Search Examples
SEARCH L1 SSS FUL
S L2 OR L3 SSS SAM
S L7 SSSSEARCH L1 CSS FUL
S L2 NOT L3 CSS
S L4 OR L5 CSS RANGEFAM

S L6 FAM SAM

EXA

SEA L5 EXA FUL

Scopes of Structure Searches
To create an L-number answer set containing candidate structures that have passed the screening step of yourstructure search, enter EXTEND on the search command line or enter SET EXTEND ON or SET EXTEND ON
PERM at an arrow prompt (=>). For details, enter HELP SET EXTEND at an arrow prompt.
Type

Definition

Search CodeSample (1) (default)

Search a fixed 5% of the file.

SAM

Full

Search 100% of the file.

FUL

Range

Search a user-specified portion of the file.

RAN

Subset Sample

Search a fixed sample of an answer set
created by a search in LREGISTRY.
Search a user-specified portion of answer set
created by a search in LREGISTRY.
Search 100% of an answer set created by asearch in LREGISTRY.

SUB SAM

Subset Range
Subset Full

(1) EXTEND is not valid with SAMPLE.

February 2016

SUB RANSUB FUL

Search Examples
SEARCH L3 EXA SAM
S L6 NOT L7 SSS SAM
S L5 OR L8 SSS FUL
S L4 RAN= (110507-58-9,)
S L3 FAM RAN= (109784-14-7,
109904-92-9)
S L7 CSS SUB=L5 SAM
S L3 SUB=L2
RAN=(,50-11-3)
S L8 SUB=L6 FAM FUL

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LREGISTRY

Sequence Search Terms
Terms

Search Example

One-letter codes for common amino acids (1)Three-letter codes for common and uncommon amino acids (1) (2)Enclose codes or strings of codes in single quotes. Use dashes toseparate codes in strings.
Single letter codes for nucleic acids (3)S LAGLL/SQSPS 'LEU-ALA-GLY-LEU-LEU'/SQSFPS F'HCY-STA'LF/SQSPS 'GLP'AGYSK/SQEP
S 'CYS-ASN-THR-ALA'/SQEPS ATTTTTTTTTT/SQEN
S AAGGTTACTA/SQSN(1) Enter HELP AAC at an arrow prompt to display a table of the 1- and 3-letter codes for common amino acids.
(2) Enter HELP AAU at an arrow prompt to display a table of the 3-letter codes for uncommon amino acids.
(3) Enter HELP NUC at an arrow prompt to display a table of the codes for nucleic acids.

Types of Sequence Searches
Sequence data for protein and nucleic acid sequences are displayed in the SEQ field with 1-letter codes and the
SEQ3 field with 3-letter codes for proteins only.
Type

Definition

Sequence Exact,
ProteinSequence Exact
Family, Protein

Search for sequences that match the query. The
query must be completely defined.
Search for sequences that match the query and thosein which family-equivalent substitution of the query
amino acids occur (1).
Search for exact answers plus sequences in which
the query sequence is embedded. Variability
symbols are allowed.
Search for exact subsequences, and answers inwhich family-equivalent substitution of the query
amino acids occurs (1).
Search for sequences that match the query.
Ambiguity codes for nucleic acids are allowed.
Search for exact answers, plus sequences in which
the query sequence is embedded. Ambiguity codes
for nucleic acids and variability symbols areallowed.

Subsequence,Protein
Subsequence
Family, Protein
Sequence Exact,
Nucleic Acid
Subsequence,
Nucleic Acid

Code
/SQEP
/SQEFP/SQSP/SQSFP

ExamplesS YADAIF/SQEP
S 'CYS-ASN-THR-ALA'/SQEPS YGGFL/SQEFPS 'TYR-GLY-GLY- PHELEU'/SQEFPS LAGLL/SQSPS F'HCY-STA'LF/SQSP/SQEN

S ATCXAWV/SQSFPS 'LEU-ALA-GLY-LEULEU'/SQSFPS ATTTTTTTTTT/SQEN/SQSN

S AAGGTTACTA/SQSN(1) The families of amino acid equivalents retrieved in protein family searches are:
P, A, G, S, T
Q, N, E, D, B, Z
H, K, R
L, I, V, M
F, Y, WC

(neutral, weakly hydrophobic)(hydrophilic, acid amine)(hydrophilic, basic)(hydrophobic)(hydrophobic, aromatic)(cross-link forming)

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LREGISTRY

Variability Symbols for Subsequence Searches (/SQSP, /SQSFP, and/SQSN)(1,2)
SymbolFunction

Search Examples[]

To specify alternate residues

S LGP[VL]/SQSP
S LGP['VAL''LEU']/SQSP[-]To exclude a specific residue or alternate residues

S LGP[-H]/SQSP
S LGP[-'HIS']/SQSPSPS LGP[-HL]/SQSP{m}

To repeat the preceding sequence or sequence query(L#, E#, or saved query) m times

S (FL){2}/SQSP
S L4{2}/SQSP
S NAME/Q{3}/SQSP
S (CTG){2}/SQSNS TAA(TAAA){2}/SQSN

{m,u}
or
{m-u}

To repeat the preceding sequence or sequence query(L#, E#, or saved query) m to u times

S GG(FL){1,2}/SQSP
S L3{1,3}/SQSP
S NAME/Q{1,4}/SQSP
S (CTG){1,3}/SQSN

?
or
{0,1}
or
{0-1}

To repeat the preceding sequence or sequence query(L#, E#, or saved query) zero or one time

S FLRRI(RP)?K/SQSPS FLRRI(RP){0,1}K/SQSP
S L1{0-1}NN/SQSP
S NAME/Q{0,1}NN/SQSPS CAT(CGA){0,1}GGAC/SQSN

*
or
{0,}
or
{0-}

To repeat the preceding sequence or sequence query(L#, E#, or saved query) zero or more times

S KLK(WD){0,}N/SQSPS KLK(WD)*N/SQSP
S L1{0-}NN/SQSP
S NAME/Q{0,}NN/SQSPS CAT(CTG){0,}TATT/SQSN

+
or
{1,}
or
{1-}

To repeat the preceding sequence or sequence query(L#, E#, or saved query) one or more times

S KLK(DLE){1,}/SQSPS KLK(DLE)+/SQSP
S L2{1-}/SQSP
S NAME/Q{1,}/SQSPS CAT(CTG){1,}TATT/SQSN&

To join together sequence expressions or queries (L#s,
E#s, or saved queries)

S L1&L3/SQSFP
S L2&L5{1,3}/SQSP
S NAME1/Q{2}&NAME2/Q/SQSP
S E1&E3/SQSP(1) For more information on specifying variability in subsequence queries, enter HELP SQQ at an arrow prompt.
(2) In addition, the caret and the vertical bar may be used. The caret is used at the beginning or end of a sequence to search for thatsequence at the beginning or end of a sequence field. The vertical bar is the symbol for alternation, i.e., it is used to separate alternatesequence queries.

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LREGISTRYSpecifying Gaps in Subsequence Searches (/SQSP, /SQSFP, and /SQSN)
SymbolFunction

Search Examples.

A gap of one residue

S SY.RPG/SQSPS SY..RPG/SQSPSS AAG...TGC/SQSN

.{m}
or
[m.]

A gap of m residues

S SY.{2}RPG/SQSPS SY[2.]RPG/SQSP.{m,u}or.{m-u}

Gap of m to u residues

S GFF.{2,10}LSS/SQSPS GFF.{2-10}LSS/SQSPS AAG.{2,5}TGC/SQSN:

Gap of zero or one residues

S AGA:SRI/SQSFPSS AGA.?SRI/SQSFPS AGA.{0,1}SRI/SQSFPS AGA.{0-1}SRI/SQSFP

.*
or
.{0,}
or
.{0-}

Gap of zero or more residue

S HLC.*TYG/SQSPS HLC.{0,}TYG/SQSPS HLC.{0-}TYG/SQSPS AAGGCAGATG.*GCAA/SQSN.+
or.{1,} or .{1-}A gap of one or more residues

S SY.+TH/SQSFPS SY.{1,}TH/SQSFPS SY.{1-}TH/SQSFPS TCCTG.+GTGG/SQSN

or
.?
or
.{0,1}
or.{0-1}CAS Registry BLAST® Similarity Searching®

Similarity searching of peptides and nucleotides in LREGISTRY using the BLAST (Basic Local Alignment Search®
SMTool) algorithm is also available only for commercial accounts via STN on the Web or using STN Express 8.3®
or higher for Windows .

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LREGISTRYDISPLAY and PRINT Formats
Individual substance information fields may not be combined with substance predefined formats, e.g., D IDE RSD
is not a valid request.
Multiple codes must be separated by commas or spaces. The fields are displayed or printed in the orderrequested.
Highlighting must be ON during SEARCH in order to use the HIT and KWIC formats.
The CM (Component Number) field appears in records for multicomponent substances, but it is not a custom
display field and cannot be used in display or print requests.
FormatAF
AR
CCI
CCN (2)
CI
CIL
CMF
CN
COMP(3)
CRN
DEF
DR
ED
FCN (2)
FS
IL
IN
LC
MF
PCT
PR
REF
RN
RR
RSD (4)SCN (5)SR
SRSD (6)STF (7)
STR (8)STS (7,8)
NA
NTE
PNTE
SEQ

February 2016

Content
Alternate Molecular Formula
Alternate Registry Number
Component Class Identifier
Condensed Chemical Name
Substance Class Identifier
Component Isotope at Unknown Location
Component Molecular Formula
Chemical Name
Composition
Component Registry Number
Definition
Deleted CAS Registry Number
Entry Date
Full Chemical Name
File Segment
Isotope at Unknown Location
CA Index Name
Registry Number Locator
Molecular Formula
Polymer Class Term
Preferred Registry Number
Number of references in CA, CAplus
CAS Registry Number
Replacing CAS Registry Number
Ring System Data
Short Chemical Name
Source of Registration
Short Ring System Data
Flat Structure (no stereo indicated)
Structure Diagram (includes stereo bonds and R/S/E/Z labels
when available)
Stereo Structure (includes stereo bonds when available)
Nucleic Acid
Note
Patent Annotation
Sequence (1-letter codes)

ExamplesD L4 1-4 AF
D L1 3 AR
D CCI 1,3-5
D 20 CCN
D 1-3,7,8 CI
D CIL
D L1 CMF 3
D CN
D L7
D 1,3,6 CRN L5
D DEF
D L8 DR 1-3
D ED
D FCN L3 7
D 1,4 FS
D IL
D IN L1 4
D LC 3,4
D MF
D L3 PCT
D 5,3 PR
D REF
D L4 RN 3
D L3 2 RR
D RSD
D 5-9 SCN
D SR 1,3 L12
D SRSDD L9 1 3
D L4 STR
D STS
D 6 9 11 NA
D NTE
D PNTE
D SEQ

11
LREGISTRYDISPLAY and PRINT Formats (cont'd)Format
SEQ3
SQD
SQD3
SQIDE
SQIDE3
SQL
SQN
ALL
FIDE
IDE
REG
SAM
SCAN (9,10)

HIT (1)
KWIC (1)Content

ExamplesSequence (3-letter codes)
RN, AR, PR, DR, RR, FS, SQL, NA, NTE, PNTE, SEQ
RN, AR, PR, DR, RR, FS, SQL, NA, NTE, PNTE, SEQ3
RN, CN, DEF, AR, PR, DR, RR, FS, SQL, NA, NTE, PNTE,
SEQ, MF, AF, CI, PCT, SR, LC, IL, STR, REF
Same as SQIDE except that 3-letter codes are used for protein
sequences
Sequence Length
RN, CN, AR, PR, FS, SQL, DR, RR, REF

D SEQ3 1-10
D 5 SQD
D 2-4 SQD3
D L4 SQIDEAll available substance information
All substance information including all names and RSD
Up to 50 names and other substance data except for RSD (IDE
is the default)
CAS Registry Numbers (RN, DR, AR, PR, RR)
IN, SQL, MF, CI, STR, COMP
IN, SQL, MF, CI, STR, COMP (random display without answer
numbers)

DISPLAY L1 1 ALL
D FIDED IDEFields containing hit terms
Hit terms plus 20 words on either side (KeyWord in Context)

D HIT 5-10
D KWIC 5-10

D L4 SQIDE3
D L3 SQLD SQN L5 6-9

D REG
D L3 1-18 SAM
D SCAN(1)

HIT and KWIC are available for all dictionary fields except MAC, RC, and CRN, and in all biosequence fields. KWIC is the same as HIT
for all fields except DEF and LC. The entire field containing hit terms is highlighted except for DEF and LC in which the individual terms
are highlighted. The entire RSD table is displayed without highlighting. For NTE, row(s) of the table containing the hit terms is displayed
without highlighting. For SEQ and SEQ3, the amino acid codes causing the hit to be highlighted by underlining and also by a statementof their position in the sequence.
(2) Names are displayed with CN code. This is a custom display only.
(3) This is a tabular display that lists composition information and Component Registry Numbers for alloys and tabular inorganic substances.
(4) This is a tabular display that lists EA, ES, SZ, RF, RID, and RID Occurrence Count.
(5) The CA Index Name and all OTHER NAMES are displayed with CN code. This is a custom display only.
(6) This is a tabular display that lists EA, RID, and RID Occurrence Count.
(7) Custom display format.
(8) Stereo structure diagrams are available only on graphics terminals and offline prints.
(9) No online display charge for this option.
(10) SCAN must be specified on the command line, i.e., D SCAN or DISPLAY SCAN.

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LREGISTRYSELECT, ANALYZE, and SORT Fields
The SELECT command is used to create E-numbers or an L-number containing terms taken from the specified
field in an answer set.
The ANALYZE command is used to create an L-number containing terms taken from the specified field in ananswer set.
The SORT command is used to rearrange the search results in either alphabetic or numeric order of the specified
field(s).
FIELD NAME
Alternate Molecular Formula
Alternate Registry Number
CA Index Name
CAS Registry Number
Chemical NameClass Identifier
Component Class Identifier
Component Molecular Formula
Component Registry Number
Definition
Deleted CAS Registry Number
Elemental Analysis for Ring System
Elemental Sequence for Ring System
Entry Date
File Segment
Full Chemical Name
Molecular Formula
Names
Nucleic Acid Sequence (exact search form)
Nucleic Acid Sequence (subsequence search form)
Polymer Class Term
Preferred Registry Number
Protein Sequence (exact family search form)
Protein Sequence (exact search form)
Protein Sequence (subsequence family search form)
Protein Sequence (subsequence search form)
Registry Number Locator
Registry Numbers and Names
Replacing CAS Registry Number
Ring Identifier
Ring System Formula
Sequence (1-letter codes)
Sequence (3-letter codes)
Sequence Length
Short Chemical Names
Size for the Ring System
Source of Registration
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)

FIELD CODEANALYZE
SELECT (1)

SORT

AF
AR
IN
RN
CN
CI
CCI
CMF
CRN
DEF
DR
EA
ES
ED
FS
FCN
MF
NAME
SQEN
SQSN
PCT
PR
SQEFP
SQEP
SQSFP
SQSP
LC
CHEM
RR
RID
RF
SEQ
SEQ3
SQL
SCN
SZ
SR

Y (2)
Y (3)
Y (4)
Y (3)
Y (5)
Y
Y (6)
Y (3)
Y
Y
Y (3)
Y
Y
Y
Y
Y (4)
Y
Y (8)
Y
Y
Y
Y (3)
Y
Y
Y
Y
Y (10)Y (11) (default)
Y (5)
Y
Y
Y (9)
Y (9)
N
Y (4)
Y
Y

N
N
Y
Y
N
N
N
N
N
N
N
N
N
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
N
N
N

HIT may be used to restrict terms extracted to terms that match the search expression used to create the answer set, e.g., SEL HIT CN.
/MF is appended to the terms created by SELECT.
/BI is appended to the terms created by SELECT.
/CN is appended to the terms created by SELECT.
CA Index Name, first 50 names in alphabetical order, and any additional hit names are extracted.
/CI is appended to the terms created by SELECT.
/FA is appended to the terms created by SELECT.
All names except inverted names are extracted and /BI is appended to the terms created by SELECT. For nucleic acids from the
GenBank database, NAME extracts GenBank Locus ID and GenBank numbers. GenBank numbers may be used as search terms in the
GenBank database or other STN databases such as MEDLINE®.
(9) /SQSP is appended to the terms created by SELECT.
(10) E-numbers containing the files listed in this field may be used in the FILE and INDEX commands in place of the file names.
(11) AR, DR, PR, RN, RR, and all names except inverted names are extracted and /BI is appended to the terms created by SELECT.

February 2016

13
LREGISTRY

Sample Records
DISPLAY IDE
RN
57-88-5 LREGISTRY
CN
Cholest-5-en-3-ol (3β)- (CA INDEX NAME)OTHER CA INDEX NAMES:
CN
Cholesterol (8CI)
OTHER NAMES:
CN(-)-Cholesterol
CN∆5-Cholesten-3β-ol
CN
3β-Hydroxycholest-5-ene
CN
5:6-Cholesten-3β-ol
CN
Cholest-5-en-3β-ol
CN
Cholesterin
CN
Cholesteryl alcoholCN
DytholCN
LidinitCN
LidiniteCN
NSC 8798
CN
Provitamin D
CN
SyntheChol
FS
STEREOSEARCH
DR
849593-11-9, 856708-55-9, 732297-95-9, 793670-51-6, 80356-14-5,
80356-33-8, 209124-38-9, 218965-24-3, 262418-13-3, 378185-03-6,
676322-57-9
MF
C27 H46 O
CICOM
LC
STN Files:
ADISNEWS, AGRICOLA, ANABSTR, BIOSIS, BIOTECHNO, CA, CABA,CAPLUS, CASREACT, CBNB, CHEMCATS, CHEMINFORMRX, CHEMLIST, CIN, CSNB,
DDFU, DETHERM*, DRUGU, EMBASE, IFICDB, IFIPAT, IFIUDB, IPA, MEDLINE,
MRCK*, MSDS-OHS, NAPRALERT, PIRA, REAXYSFILE*, RTECS*, SPECINFO,TOXCENTER, ULIDAT, USAN, USPAT2, USPATFULL, VETU(*File contains numerically searchable property data)
Other Sources:
DSL**, EINECS**, TSCA**(**Enter CHEMLIST File for up-to-date regulatory information)
Absolute stereochemistry.

February 2016

14
LREGISTRYDISPLAY CCN
CNMethanamine, conjugate acid (9CI) (CA INDEX NAME)OTHER CA INDEX NAMES:
CN
Methylamine, conjugate acid (8CI); Methylamine, conjugate acid of (7CI)
OTHER NAMES:
CN
Methanaminium; Methylammonium; Methylammonium cation;
Methylammonium ion; Monomethylammonium; Monoprotonated methylamine;
Protonated methylamine
DISPLAY ALL – RING SYSTEM DATA
RN
117663-66-8 LREGISTRY
CN
4-Pyrimidinamine, N,N-diethyl-5-methyl-2,6-bis(methylthio)NAME)MF
C11 H19 N3 S2SRCALC
STN Files:
CA, CAPLUS, CASREACT, REAXYSFILE*(*File contains numerically searchable property data)(CA INDEX

Ring System Data
Elemental|Elemental| Size of |Ring System|
Ring
|
RID
Analysis |Sequence |the Rings| Formula |Identifier|Occurrence
EA
|
ES
|
SZ
|
RF
|
RID
| Count=========+=========+=========+===========+==========+==========C4N2|NCNC3|6|C4N2|46.195.39 |1

DISPLAY SQIDE (Nucleic Acid Sequence Indexed by CAS)
RN
91449-61-5 LREGISTRY
CN
DNA (Tikaut virus 5'-long terminal repeat) (9CI) (CA INDEX NAME)OTHER CA INDEX NAMES:
CN
Deoxyribonucleic acid (Tikaut provirus 5'-long terminal repeat)
FS
NUCLEIC ACID SEQUENCESQL 641
NA
186 a
170 c
160 g
125 t
NTE doublestranded
SEQ

MF
CI
LC

1 tgaaagaccc caccataagg cttagcaagc tagctgcagt aacgccattt
51 tgcaaggcat gaaaaagtac cagagctgag ttctcaaagt caacaacgaa
101 gtttagttaa agaataaggc tgaacaaaac tgggacaggg gccaaacagg
151 atatctgtgg tcgagcagct agggccccgg ctcagggcca agaacagatg
201 gtactcagat aaagcgaagg gctgaacaaa acgggacagg ggccaaacag
251 gatgggggcc aaacaggata tctgtggtcg agcacctggg ccccggctca
301 gggccaagaa cagatggtac tcagataaag cgaaactaac aacagtttct
351 ggaaagtccc acctcagttt caagttcccc aaaagaccgg gaaaaacccc
401 aagccttatt taaactaacc aatcagctcg cttctcgctt ctgtaacccg
451 cgctttttgc tcccagccct ataaaaaggg taaaaacccc acactcggcg
501 ccccagtcct ccgatagact gagtcgcccg ggtacccgtg tatccaataa
551 agccttttgc tgttgcatcc gaatcgtggt ctcgctgatc cttgggaggg
601 tctcctcaga gtgattgact gcccagcctg ggggtctttc a
Unspecified
MAN
STN Files:
CA, CAPLUS

February 2016

15
LREGISTRY®

DISPLAY SQIDE (Nucleic Acid Sequence Registered from GenBank )RN
91386-53-7 LREGISTRY
CN
DNA (Friend mink cell focus-inducing virus clone Bp-1 3'-long terminal
repeat) (9CI) (CA INDEX NAME)OTHER CA INDEX NAMES:
CN
Deoxyribonucleic acid (Friend mink cell focus-inducing provirus clone Bp-13'-long terminal repeat)
OTHER NAMES:CNGenBank K01385
CN
GenBank M16688 (Secondary GenBank Accession Number)FS
NUCLEIC ACID SEQUENCESQL 550
NA
132 a
164 c
134 g
120 t
SEQ

MF
CI
LC

1 tgaaagaccc caccaagttg cttagcctga tagccgcagt aacgccattt
51 tgcaaggcat ggaaaaatac caaaccaaga atagagaagt tcagatcaag
101 ggcgggtaca cgaaaacagc taacgttggg ccaaacagga tatctgcggt
151 aagcagtttc ggccccggcc cggggaagaa cagatggtca ccgcagttcg
201 gccccggccc ggggaagaac agatggtccc cagatatggc ccaaccctca
251 gcagtttctt aagacccatc agatgtttct aggctccccc aaggacctga
301 aatgaccctg tgccttattt gaattaacca atcagcctgc ttctcgcttc
351 tgttcgcgcg cttctgcttc ccgagctcta taaaagagct cacaacccct
401 cactcggcgc gccagtcctc cgacagactg agtcgcccgg gtacccgagt
451 atccaataaa tcctcttgct gttgcatccg actcgtggtc tcgctgttcc
501 ttgggagggt ctcctcagag tgattgacta cccgtctcgg gggtctttca
Unspecified
MAN
STN Files:
CA, CAPLUS

In North America
CAS
STN North America
P.O. Box 3012
Columbus, Ohio 43210-0012 U.S.A.
CAS Customer Center:Phone: 800-753-4227 (North America)
614-447-3700 (worldwide)Fax:
614-447-3751
Email:
help@cas.org
Internet: www.cas.org

In Europe
FIZ Karlsruhe
STN Europe
P.O. Box 2465
76012 Karlsruhe
Germany
Phone: +49-7247-808-555
Fax:+49-7247-808-259
Email:
helpdesk@fiz-karlsruhe.de
Internet: www.stn-international.com

In Japan
JAICI (Japan Association forInternational Chemical Information)
STN Japan
Nakai Building
6-25-4 Honkomagome, Bunkyo-ku
Tokyo 113-0021, Japan
Phone: +81-3-5978-3601 (Technical Service)+81-3-5978-3621 (Customer Service)
Fax:+81-3-5978-3600
Email:
support@jaici.or.jp (Technical Service)customer@jaici.or.jp (Customer Service)
Internet: www.jaici.or.jp

February 2016