CASREACT®
Subject
Coverage

CASREACT covers synthetic organic research, including organometallics, total
syntheses of natural products and biotransformation reactions.

File Type

ReactionsFeatures

Alerts (SDIs)

WeeklyCAS Registry
Number® IdentifiersPage Images

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Structures
Register Links

RecordContent• Records from the CAS database include searchable:- CAS Registry Numbers for all reactants, products, reagents, solvents, andcatalysts from the CAS database- Yields for many products, reaction conditions, and textual reaction informationfrom the CAS database- Structure diagrams- CAS Roles, reaction sites, and mapping of atoms between reactants andproducts- Common Functional Groups found in reactants, reagents, and products- Bibliographic information, in-depth substance and subject indexing, and abstracts• Records from the CAS database also include displayable reference data such as CAS
roles, patent family data, cited references, and CAS Registry Numbers indexed for CA,
but not reaction participants.

File SizeMore than 2.2 million records with more than 140.2 million reactions and synthetic
preparations (11/2023)

Coverage1840 - present

UpdatesDaily

Language

English

Database
Producer

Chemical Abstracts Service
2540 Olentangy River Road
P.O. Box 3012
Columbus, Ohio 43210-0012 US
Phone: 800-753-4227 (North America)
Phone: 614-447-3731 (worldwide)
Email: help@cas.org
Copyright Holder

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CASREACT

Sources

Chemical reaction database containing reactions from the following sources:• CAS database of reactions derived from journals covered in CA from 1984 to thepresent and patents from January 1989 to the present• The reaction collection jointly built by the All-Union Institute of Scientific and Technical
Information of the Academy of Sciences of the USSR (VINITI) and the German
Zentrale Informationsverarbeitung Chemie, Berlin (ZIC) and supplied by the German
software company, InfoChem (journals 1974-1999, patents 1982-1999)• Rxn: Core Reactions database from the French organization, INPI (Institut National dela Propriete Industrielle) (1840-1985)• Biotransformations database compiled during the years 1971-1997 under the directionof Professor Doctor Klaus Kieslich• Encyclopedia of Reagents for Organic Synthesis (EROS)• Wiley reaction collections from John Wiley & Sons, reproduced under license. All
Rights Reserved.
• Selected Organic Reaction Database (SORD) (1961-2011)• Ph.D. dissertations from 1944-1984

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

Clusters• ALLBIB• AUTHORS• CASRNS• CORPSOURCE• HPATENTS• PATENTS• REACTION• STRUCTURE
STN Database Clusters information (PDF).

RelatedDatabases

LCASREACT

PricingEnter HELP COST at an arrow prompt.

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CASREACT

Search and Display Field Codes
The fields that allow left truncation are marked with an asterisk (*).

Reaction Fields
Search Field Name

SearchCode

Search Examples

Display
Codes

Basic Index* (contains CAS Registry
Numbers for all reactants,
products, reagents, solvents, andcatalysts, and single words fromthe title (TI), supplementary term(ST), abstract (AB), index term(IT), and reaction note (NTE)
fields) (1)None(or /BI)S 50-00-0
S FAILED REACT?
S 13129-23-2 (L) 96695-24-8
S TAUTOMERISMS ?TOXIN?

AB, IT, NTE, RX
formats, ST, TI

Catalyst/CAT

RX formats

Functional Group that is Formed
Functional Group in Product/FG.FORM/FG.PRO

Functional Group in Reactant/FG.RCT

Functional Group in Reactant,
Reagent, or Product
Functional Group that is Reacting/FG

S 104-15-4/CAT
S L1 (L) ANY/CATS THIOPHENOL/FG.FORM
S NITRO/FG.PROS PRIMARY AMINE/FG.RCT (S) NITRO/FG.PROS NITRO/FG.PRO (L) SULFONE/FG.RGTS NITRO/FG.PRO (L) ANY/CATS TRIHALIDE/FG.RCTS AZIDE/FG.RCT (S) PRIMARY AMINE/FG.PRO
S AMIDE/FG.RCT,FG.RGTS ACETAL/FG.RCT (L) ANY/CATS PRIMARY AMINE/FG/FG.RXNS KETONES/FG.RXN (S) THIONE/FG.FORM

RX formats

Functional Group in Reagent/FG.RGTRX formats

Functional Group Yield (2)/FG.YD

Functional Group Yield Data

/FG.YDT

NonProductNonreacting Functional Group/NPRO/FG.NON

Number of Steps (2)/NS

Product
Reactant

/PRO
/RCT

Reactant or Reagent
Reaction Notes*

/RRT
/NTE

Reagent
Solvent/RGT/SOL

Yield (2)/YD

Yield Data/YDTS SULFONE/FG.RGTS AMIDE/FG.PRO (L) HALOHYDRIN/FG.RGTS AMIDE/FG.RCT,FG.RGT
S FG.YD>=95
S NITRO/FG.FORM (A) FG.YD>=90
S NONE/FG.YDTS (95/FG.YD OR NONE/FG.YDT)S HALIDES/FG.PRO (A) (95/FG.YD OR
NONE/FG.YDT)S 10025-87-3/NPROS ALLYL ALCOHOL/FG.FORM (L)LACTONE/FG.NON
S NS>=2
S 109-99-9 (L) 71-43-2 (L) 1/NS
S 2577-41-5/PRO
S 999-97-3/RCTS 928-49-4/RCT (L) 114140-93-1/PRO
S 100-07-2/RRTS 200 DEGREE/NTE
S ?HYDROGEN?/NTE
S 74-88-4/RGT
S 64-17-5/SOL
S 64-17-5/SOL (L) CARBOXYLIC/FG.PRO
S 98/YD
S L1 (A) YD>50
S 138687-69-1/PRO(A)95-100/YD
S 2577-41-5/PRO (A) (95-100/YD OR NONE/YDT)S NONE/YDTS L5 (A) (95-100/YD OR NONE/YDT)S 2577-41-5/PRO (A) (95-100/YD OR NONE/YDT)

RX formats
RX formats

RX formats

RX formats

RX formats
Not displayed

RX formats
RX formats
Not displayed
RX formats
RX formats
RX formats
RX formats
RX formats
RX formats
RX formats

Not displayed(1) CAS Registry Numbers are from the reaction information, not the IT terms.
(2) Numeric search field that may be searched with numeric operators or ranges.
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CASREACT

General Document Fields
SearchCode

Search Field Name
Abstract
Accession Number
Author (Inventor)
CA Section Cross-Reference (1)(number and title)

/AB
/AN
/AU
/SX

Classification Code (1) (contains
CA section-subsection
number, section title, andsection group codes)
Controlled Term

/CC

Controlled Word
Corporate Source (1)(organization name andlocation, patent assignee)Country of Author
Document Type (code and text)

/CW
/CS

/CT

Entry Date (2)

/CYA
/DT
(or /TC)/ED

Field Availability
File Segment (3)

/FA
/FS

Index Term (4)International Standard(Document) Number (contains
CODEN and ISSN)
Issue Number of Publication (2)Journal Title
Language (code and text)

/IT
/ISN

Other Source
Publication Date (2)Publication Year (2)Publisher (1)Publisher Item Identifier
Source (contains publication
title, date, collation information(volume, issue, pagination),
CODEN, and ISSN)
Supplementary Term
Title
Uniform Resource Locator

/OS
/PD
/PY
/PB
/PUI
/SO

Update Date (2)Volume and Issue of CA
Volume Number of
Publication (2)

/UP
/VI
/VL

/IS
/JT
/LA

/ST
/TI
/URL

Display
Codes

Search Examples
S PHOTOLY?/AB
S 109:149648/AN
S EVANS D?/AU
S 24/CC,SXS ALICYCLIC/SXS CONDENSED BENZENOID/SX
S 24/CCS ALICYCLIC/CCS PHYSICAL ORGANIC/CC

AB
AN
AU
CC

S PORPHYRIN#/CT
S MICHAEL REACTION/CT
S POLYMER/CWS DOW/CSS DOW CHEMICAL/CS
S "DOW CORNING"?/CS
S USA/CYAS P/DTS PATENT/DT
S ED>20010600
S ED>JUNE 2001
S DIA/FAS ORG/FS AND L1
S INFOCHEM/FS AND L1
S INPI/FSS REACTION WITH/ITS JACSAT/ISN
S 0002-7863/ISN

CT, IT

S 1-3/ISS J AM CHEM SOC/JT
S L1 AND EN/LA
S L1 AND ENGLISH/LAS MARPAT/OSS PD>20010100
S 2000-2001/PY
S ACADEMIC/PB
S "S 0014-3057(96)00299-6"/PUIS J AM CHEM/SOS JACSAT/SO
S 0002-7863/SO

SO
JT, SOLAS (ASYM (S) SYNTHESIS)/ST
S REDOX AGENT#/TI
S "HTTP://MDPI.ORG./MOLECULES/PAPERS/30300051.PDF"/URL
S L1 AND UP>20011000
S 107-25/VI
S 32-33/VL

ST
TI
SO, URL

CC

CT, IT
CS, PA

CS, CYA, PA
DT
Not displayed
Not displayed
CC, FSIT
ISN, SOOS
PI, SO
PI, PY, SO
PB
PUI
SO

Not displayed
ANSO(1) Search with implied (S) proximity is available in this field.
(2) Numeric search field that may be searched with numeric operators or ranges.
(3) The file segment INFOCHEM includes records derived from the reaction collection jointly built by the All-Union Institute of Scientific andTechnical Information of the Academy of Sciences of the USSR (VINITI) and the German Zentrale Informationsverarbeitung Chemie,
Berlin (ZIC) and supplied by the German software company, InfoChem (journals 1974-1991, patents 1982-1991).
(4) There are no stopwords in this field.

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CASREACTPatent Search Fields
SearchCode

Search Field Name
Designated State/DSInternational PatentClassification (includes Mainand Secondary IPCs)
International PatentClassification, Additional or
Supplementary
International PatentClassification, Index orComplementary
International PatentClassification, Main
International PatentClassification, Main Group,
Range Searchable (1)International PatentClassification, Secondary
International PatentClassification Subgroup,
Range Searchable (1)Inventor Name
National Patent Classification
National Patent Classification,
Range Searchable (1)Patent Application Country(code and text)
Patent Application Date (1)Patent Application Number (2)Patent Application Year (1)Patent Assignee (3)Patent Country (code and text)
Patent Kind CodePatent Number (3)Priority Application Country(code and text)
Priority Application Date (1)Priority Application Number (3)Priority Application Year (2)/IC

Display
Codes

Search Examples
DS

/ICI

S BE/DSS BELGIUM/DS
S B01J/ICS B01J027/IC
S B01J027-08/IC
S C07C/ICAS C07C049/ICA
S C07C049?/ICA
S C07D?/ICI/ICM

S C07C033/ICM

ICM

/MGR

S 10-20/MGR (L) C07H/IC

IC

/ICS

S C07C/ICS

ICS

/SGR

S SGR=>30000(L) C07C211/IC

IC

/IN
/NCL
/NCLR

S PATTON JERRY R/IN
S 548185000/NCL
S 536119000-568720000/NCLR

IN
NCL
NCL

/AC

AI

/AD
/AP
/AY
/PA
/PC
/PK
/PN
/PRC

S US/ACS UNITED STATES/ACS AD>19950101
S DE90-4005135/AP
S 1991/AYS PFIZER/PAS WO/PCS EPA2/PK
S EP424764/PN
S US/PRC

/PRD
/PRN
/PRY

S PRD>19880600
S JP89-164593/PRN
S 1988-1989/PRY

PRAI
PRAI
PRAI

/ICA

IC, ICM, ICS

ICA

ICI

AI
AI
AI
PA
PI
PI
PI
PRAI

(1) Numeric search field that may be searched with numeric operators or ranges.
(2) Either STN format or Derwent format may be used.
(3) Search with implied (S) proximity is available in this field.

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CASREACTSuper Search Fields for Patents
Enter a super search code to execute a search in one or more fields that may contain the desired information.
Super search fields facilitate crossfile and multifile searching. EXPAND may not be used with super search fields.
Use EXPAND with the individual field codes instead.
Search Field Name
International PatentClassifications
Patent Application and Priority
Number (1)Patent Countries
Patent Numbers (1)SearchCode

FieldsSearched/IPC/IC, /ICA, /ICI

/APPS

/AP, /PRN

/PCS
/PATS

/PC, /DS/PN

Display
Codes

Search Examples
S A01N/IPC
S A01N033/IPC
S DE90-4005135/APPS
S 90DE-4005135/APPS
S DE/PCSS EP424764/PATS
S EP-424764/PATS

ICA, ICI, ICM,ICS
AI, PRAI
DS, PIPI(1) Either STN format or Derwent format may be used.

Limiting Search Codes
Only an L-number for an answer set created in CASREACT may be limited.
Search Field Name

SearchCode

Answers completely iterated
Answers incompletely iterated/COMPLETE (1)/INCOMPLETE (1)Search Examples
S L4/COM
S L4/INC(1) The code may be abbreviated to the first three letters.

Structure Search Terms
Terms (1)

Search Examples

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

S L1 CSS FUL
S L1 NOT L2
S L3 OR L4
S L1 NOT L3(1) The L-number answer set from a structure search may be combined with text terms, e.g., S L6 (L) ANY/CAT.

Types of Structure SearchingType
Substructure(default)
ClosedSubstructure

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Definition
Search for substances that match the query.
Substitution is allowed at all open positions.
Search for substances that match the query
exactly. Substitution is allowed at positions
opened by CONNECT.

Search
Code
SSS
CSS

Search Examples
S L1 SSS FUL
S L2
S L1 CSS FUL
S L4 CSS

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CASREACT

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.
Scope

SearchCodeDefinition

Sample (1)(default)
Full
Range (2)

Search a fixed 5% of the file

SAM

Search 100% of the file
Search a user-specified portion of the file

FUL
RAN

Subset Sample

Search a fixed sample of an answer set created bya search in CASREACT
Search a user-specified portion of an answer set
created by a search in CASREACTSUB SAM

Search 100% of an answer set created by a searchin CASREACTSUB FUL

Subset Range(2)
Subset Full

SUB RAN

Search Examples
S L1 SAM SSS
S L1
S L5 SSS FUL
S L4 RAN=(V112)
S L1 RAN=(RCR)
S L9 SUB=L8 SAM
S L12 SUB=L11
RAN=(V112,V113)
S L3 SUB=L2 RAN=(RCR)
S L2 CSS SUB=L1 FUL(1) EXTEND not valid with SAMPLE.
(2) RCR searches the Recent Chemical Reactions, i.e., the current volume and the preceding volume.

DISPLAY and PRINT Formats
Any combination of formats may be used to display or print answers. Multiple codes must be separated by spaces
or commas, e.g., D L1 1-5 TI AU, D L1 1-5 TI,AU. The fields are displayed or printed in the order requested.
Hit-term highlighting is available in all searchable fields except compressed reaction displays and FS. In reaction
fields, highlighting occurs in the Reaction Map and in the Reaction Summary. Highlighting must be ON in order to
use the CRD, CRDREF, FCRD, FCRDREF, FHIT, FPATH, FSPATH, HIT, OCC, PATH, RX, RXG, RXL, RXS, andSPATH formats.

Reaction Formats
FormatContent

ExamplesCRD(n) (1)
CRDREF(n) (1)RX(n) (1)RXG(n) (1)RXL(n) (1)RXS(n) (1)
SSRX(n) (1)Compact Display of Reaction n
Compact Display of Reaction n and SO, PY for Reference
Reaction n (Map, Diagram, Summary for reaction n)
Reaction n Graphics (Map and Diagram for reaction n)
Reaction n Long (Map, Diagram, Summary for all steps of reaction n)
Reaction n Summary (Map and Summary for reaction n)Single-Step Reaction n (Map, Diagram, Summary for single-step reaction n)

D CRD(1)D CRDREF(2)D RX(3),RX(5)D RXG(5)D RXL(8) RXL(13)D RXS(13)
D SSRX(n)ALL (MAX)(2,3,4)

AN, TI, AU, IN, CS, PA, SO, PB, DT, LA, IC (ICM, ICS), ICA, ICI, NCL, CC,
FAN.CNT, PI, PRAI, OS, AB, ST, IT, RL, RE.CNT, RE, SSRX

D L2 1-7 ALL

DALL (2,3,4)
IALL (2,3,4)
SCAN (5)SSRX

ALL, delimited for post-processing
ALL, indented with text labels
TI and FCRD (random display, no answer numbers)
Single-Step Reactions (Map, Diagram, and Summary for all single-stepreactions)

DIS L1 DALL 1-3
D IALLD SCAND SSRX

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CASREACTReaction Formats (cont'd)FormatContent

ExamplesCRD
CRDREFFCRD
FCRDREF

Compact display of all hit reactions
CRD and SO and Publication Date for ReferenceFirst Hit Reaction in Compact Format
FCRD and SO and publication date for reference (FCRDREF is the default)

D CRD
D CRDREF 1-2
D FCRD 3-5
D L2 6 FCRDREF

FHIT
FPATH
FSPATH
HITFirst HIT Reaction Map, Diagram, and Summary
Full PATH - PATH plus Reaction Summary
Full SPATH - SPATH plus Reaction Summary
Reaction Map, Diagram, Summary for all hit reactions and fields containing hit
terms
All hit fields and the number of occurrences of the hit terms in each field.
Includes total number of HIT, PATH, SPATH reactions. Labels reactions thathave incomplete verifications.
Reaction Map(s) and Diagram(s) of longest PATH(s). Displays all hit reactions
except those whose steps are totally included within another hit reaction.
Hit Reactions (Map, Diagram, Summary for all hit reactions)
Hit Reaction Graphics (Map and Diagram for all hit reactions)
Hit Reaction Long (Map, Diagram, Summary for all hit reactions)
Hit Reaction Summaries (Map and Summary for all hit reactions)
Reaction Map(s) and Diagram(s) for short PATH(s). Displays reactions having
a hit substance in the first and last steps except for those whose steps aretotally included within another SPATH reaction.

D FHIT
D BIB FPATH
D FSPATH
D CBIB HIT

OCC (5)

PATH
RX
RXG
RXL
RXS
SPATH

DIS 1-10 OCC

D PATHD TI RXD RXG CBIBDIS RXLD TI AU RXSD SPATH(1) Custom display only.
(2) By default, patent, application, and priority numbers are displayed in STN format. To display them in Derwent format, enter SET PATENTDERWENT at an arrow prompt. To reset display to STN format, enter SET PATENT STN.
(3) Structure diagrams in abstracts in the Graphics Image (GI) field are available only on graphics terminals and in offline prints.
(4) By default, roles are displayed as codes and text. To suppress display of role codes and text, enter SET ROLES OFF. To display only
codes, enter SET ROLES CODES.
(5) No online display fee. SCAN must be specified on the command line, i.e., D SCAN or DISPLAY SCAN.

Document Formats
FormatAB
AI (AP) (1)AI.B (AP.B) (1)
AN
AU
CC
CS
CT (2)CYA (2)CYC (CY.CNT) (2)DS (2)
DS.B (2)DT (TC)FS (2)

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Content
Abstract Text
Patent Application Information
Patent Application Information, Basic
Accession Number
Author NameClassification Code (CA section and section cross-references)
Corporate Source
Controlled Term
Country Name of Author
Patent Country Count
Designated State (Patents)
Designated States, Basic
Document Type
File Segment

ExamplesD AB
D AI
D AI.BDISPLAY L2 1-10 AN
D AU TI
D CC
D AU CS
D CT
D CYA
D CYC
D DS
D DS.B
D 1,5,10 DT
D FS

9CASREACT

Document Formats (cont'd)FormatContent

ExamplesGI (3)
ICA
ICI
ICM
ICS
IN
ISN (2)IT (4)JT (2)
LA
NCL
OS
PA
PB
PI (1)
PI.B (PN.B) (1,2)
PN
PNC (PN.CNT) (2)
PRAI (PRN) (1)
PRAI.B(PRN.B) (1)PUI (2)
PY (2)
PY.B (2)RE (5)RETABLE (2,5)
RE.CNT (REC)RL (4)SO
ST
SX (2,6)TI
UO
UOS
URL (2)Graphic Image or Graphic Image Information
Additional (Supplementary) IPC
Index or Complementary IPC
Main IPC
Secondary IPC
Patent Inventor
International Standard (Document) Number
Index Term and CAS Role
Journal Title
Language
National Patent Classification
Other Source
Patent Assignee
Publisher
Patent Information
Patent Information, Basic
Patent Number
Patent Number Count
Patent Priority Information
Patent Priority Information, Basic

D GI
D ICM ICS ICA
D ICI
D ICM
D ICM ICS
D IN
D ISN
D ST IT
D JT
D LA
D NCL
D OS
D PA
D PB
D AN PI
D PI.B
D PN
D PNC
D PRAID PRAI.B

Publisher Item Identifier
Publication Year
Publication Year, Basic
Cited References
Cited References Table
Citing Document's Reference Count
Index Term and CAS Role
SourceSupplementary Term (CA Keywords)
CA Section Cross-Reference Code
Title of Document
Ultimate Owner
Ultimate Owner Standardized
Uniform Resource Locator

D PUI
D PY
D TI PY.B
D TI RE
D TI AU RETABLE
D REC
D RL
D TI AU SO
D ST
D SX
D TI RX
D UO
D UOS
D URL

ABS (3)ALL (MAX) (1,3,4)

GI, ABAN, TI, AU, IN, CS, PA, UO, UOS, SO, PB, DT, LA, NCL, CC, FAN.CNT,
PI, PRAI, OS, AB, ST, IT, RL, RE.CNT, RE, SSRX
List of CA abstract numbers, no L-number header
AN, plus Compressed Bibliographic Data
ALL, delimited for post-processing
ABS, with text labels
ALL, indented with text labels
BIB, indented with text labels
NCL, CC, ST, IT, RL
International Patent Classifications
STD, indented with text labels
BIB, Original (AN, TI, AU, IN, CS, PA, SO, PB, PI, DS, AI, PRAI, DT, LA,OS)
OBIB, indented with text labels
PI, SODIS 2,4,6 CBIB ABS
D L2 1-7 ALL

CAN
CBIB
DALL (1,3,4)
IABS (3)
IALL (1,3,4)
IBIB (1)IND (4)IPC
ISTD (1)
OBIB (1)
OIBIB (1)
PATS (1)

D 1-10 CANDISPLAY L1 1 CBIBDIS L1 DALL 1-3
D IABSD IALLD IBIB
D IND
D IPC
D ISTD
D OBIBD OIBIBD PATS

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CASREACT

Document Formats (cont'd)FormatSBIB (1)SIBIB (1)
SCAN (5,7)
STD (1)HIT
OCC

Content

Examples

BIB, Standard, without cited references (AN, DN, TI, AU, IN, CS, PA, SO,
PB, DT, LA, FAN.CNT, PI, PRAI, OS)
SBIB, indented with text labels
TI and FCRD (random display, no answer number)
AN, TI, AU, IN, CS, PA, SO, PB, DT, LA, NCL, FAN.CNT, PI, PRAI, OS,
RE.CNT

D 1 3 SBIBD SIBIBD SCAND STDReaction Map, Diagram, Summary for all hit reactions and fields containing
hit terms
All hit fields and the number of occurrences of the hit terms in each field.
Includes total number of HIT, PATH, SPATH reactions. Labels reactions
that have incomplete verifications.

D CBIB HIT
DIS 1-10 OCC(1) By default, patent, application, and priority numbers are displayed in STN format. To display them in Derwent format, enter SET PATENTDERWENT at an arrow prompt. To reset display to STN format, enter SET PATENT STN.
(2) Custom display only.
(3) Structure diagrams in abstracts in the Graphics Image (GI) field are available only on graphics terminals and in offline prints(4) By default, roles are displayed as codes and text. To suppress display of role codes and text, enter SET ROLES OFF. To display only
codes, enter SET ROLES CODES.
(5) No online display fee for this format.
(6) SX displays all information in the CC field, i.e., CA section and section cross-references.
(7) SCAN must be specified on the command line, i.e., D SCAN or DISPLAY SCAN.

Displaying CAplus or MEDLINE documents for cited references
Enter the following in the DISPLAY command: L-number for the answer set; answer number (only one may be
specified); RAN.CAPLUS(x-y), RAN.MED(x-y), where (x-y) is the cited reference number, numbers, or range of
numbers; and the display format for the document to display, e.g., BIB ABS. For example, to display CAplus
records for the cited references 1 and 2 from answer 2 in the answer set L5, enter the following:=> D RAN.CAPLUS(1-2) L5 2 BIB ABS

SELECT, ANALYZE, and SORT Fields
The SELECT command is used to create E-numbers 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).

Reaction Fields
Field NameAll Registry Numbers from Hit Reactions
All Registry Numbers from Reaction n
All Registry Numbers from Single-Step Reactions
All Registry Numbers from Single-Step Reaction n
Catalyst Registry Numbers from HIT Reactions
Catalyst Registry Numbers from Reaction n
Product Registry Numbers from Hit Reactions
Product Registry Numbers from Reaction n

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Field Code
RX
RX(n)
SSRX
SSRX(n)CAT
CAT(n)PRO
PRO(n)ANALYZE/
SELECT (1)

SORT

Y
Y
Y
Y
Y
Y
Y
Y

N
N
N
N
N
N
N
N

11
CASREACTReaction Fields (cont'd)
Field Name
Reactant Registry Numbers from Hit Reactions
Reactant Registry Numbers from Reaction n
Reagent Registry Numbers from Hit Reactions
Reagent Registry Numbers from Reaction n
Solvent Registry Numbers from Hit Reactions
Solvent Registry Numbers from Reaction n

Field Code
RCT
RCT(n)RGT
RGT(n)SOL
SOL(n)ANALYZE/
SELECT (1)

SORT

Y
Y
Y
Y
Y
Y

N
N
N
N
N
N

(1) 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 CAT
to select the hit catalyst Registry Number.

Document Fields
Field Name
Abstract
Accession Number
AuthorCA Classification CodeCA Section Cross-Reference CodeCAS Role
Citation
Cited References
Cited Reference(n)Cited Reference Accession Number in CAplus
Cited Reference Accession Number(n) in CAplus
Cited Reference Accession Number in MEDLINE
Cited Reference Accession Number(n) in MEDLINE
Cited Reference Author Name
Cited Reference Count
Cited Reference Patent Number
Cited Reference Publication Year
Cited Reference Work Title
CODEN
Controlled Term
Corporate Source
Corporate Source, DivisionCorporate Source, Organization
Country of Author
Designated States
Designated States, Basic
Document Type
File Segment

Field Code
AB
AN
AU
CC
SX
RL
CIT
RE
RE(n)
RAN.CAPLUS
RAN.CAPLUS(n)RAN.MED
RAN.MED(n)RAU
RIN
RE.CNT
REC
RPN
RPY
RWK
CODEN
CT
CS
CS.DIV
CS.ORG
CYA
DS
DS.B
DT
FS

ANALYZE/
SELECT (1)

SORT

Y
Y
Y
Y
Y
Y (2)
Y (2,3)
Y
Y (4)
Y (5)
Y (4,5)

N
N
Y
Y
Y
N
N
N
N
N
N

Y (6)
Y (4,6)
Y
Y (7)
Y
Y
Y
Y
Y
Y (8)
Y
Y
Y
Y
Y
Y (2)
Y (2,9)
Y
Y (2)

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

November 2023

12
CASREACT

Document Fields (cont'd)
Field Name
Index Term
International Standard (Document) Number
International Standard Serial Number
Inventor Name
IPC
IPC, Additional or Supplementary
IPC, Index or Complementary
IPC, Main
IPC, Main and Secondary
IPC, Secondary
Journal Title
Language
National Patent Classification
Other Source
Patent Application Country
Patent Application Country, Basic
Patent Application Date
Patent Application Date, Basic
Patent Application Information
Patent Application Information, Basic
Patent Application Number
Patent Application Number, Basic
Patent Application and Priority Number
Patent Application and Priority Number, Basic
Patent Application Year
Patent Application Year, Basic
Patent Assignee
Patent Countries
Patent Countries, Basic
Patent Country
Patent Country, Basic
Patent Country Count
Patent Information
Patent Information, Basic
Patent Kind CodePatent Kind Code, Basic
Patent Number
Patent Number, Basic
Patent Number Count
Priority Application Country
Priority Application Country, BasicPriority Application Date
Priority Application Date, BasicPriority Application Information
Priority Application Information, BasicPriority Application Number
Priority Application Number, BasicPriority Application Year
Priority Application Year, Basic
Publication Date
Publication Year
Publication Year, Basic
Publisher
Publisher Item Identifier

November 2023

Field Code
IT
ISN
ISSN
IN
IPC
ICA
ICI
ICM
IC
ICS
JT
LA
NCL
OS
AC
AC.B
AD
AD.B
AI
AI.B
AP
AP.B
APPS
APPS.B
AY
AY.B
PA
PCS
PCS.B
PC
PC.B
CYC
PI
PI.B
PK
PK.B
PN
PATS
PN.B
PATS.B
PNC
PRC
PRC.B
PRD
PRD.B
PRAI
PRAI.B
PRN
PRN.B
PRY
PRY.B
PD
PY
PY.B
PB
PUI

ANALYZE/
SELECT (1)SORTYY (10)Y (11)Y
Y (12)
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y (2)
Y (2,13)
Y (2)Y (2,14)
Y (2,15,16)
Y (2,16,17)
Y (2,16)
Y (2,16,18)
Y (2,16,19)
Y (2,16,20)
Y (2)
Y (2,21)Y
Y (2,22)
Y (2,23)
Y (2)
Y (2,24)
Y (2,25)
Y (2,16,26)
Y (2,15,27)
Y (2)
Y (2,28)
Y (2,16)
Y (2,16)
Y (2,16,29)
Y (2,16,30)
Y (31)Y (2)
Y (2,32)
Y (2)
Y (2,33)
Y (2,16,34)
Y (2,16,35)
Y (2,16)
Y (2,16,36)
Y (2)
Y (2,37)
YY
Y (2,38)
Y
Y

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

13
CASREACT

Document Fields (cont'd)
Field Name
Source of Document
Supplementary Term
Title of Document
Treatment Code
Uniform Resource Locator

Field Code
SO
ST
TI
TC
URL

ANALYZE/
SELECT (1)Y (39)YY
Y (40)
Y

SORT
N
N
Y
Y
N

(1)

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 AU
to select the hit AU.
(2) SELECT HIT and ANALYZE HIT not valid with this field.
(3) Extracts first author, publication year, volume, first page with a truncation symbol appended and with /CIT appended to the terms createdby SELECT.
(4) (n) may be a single number, range, or a list of numbers separated by a space or comma.
(5) Selects or analyzes cited reference accession number in CAplus and appends /AN to the terms created by SELECT.
(6) Selects or analyzes cited reference accession number in MEDLINE and appends /AN to the terms created by SELECT.
(7) Selects or analyzes cited reference author name and appends /RAU to the terms created by SELECT.
(8) Selects or analyzes the CODEN and appends /ISN to the terms created by SELECT.
(9) Appends /DS to the terms created by SELECT.
(10) Selects or analyzes the CODEN and ISSN and appends /ISN to the terms created by SELECT.
(11) Selects or analyzes the ISSN and appends /ISN to the terms(12) Selects or analyzes the IC, ICA, ICI and appends /IPC to the terms created by SELECT.
(13) Appends /AC to the terms created by SELECT.
(14) Appends /AD to the terms created by SELECT.
(15) Selects or analyzes the Patent Application Numbers and appends /AP to the terms created by SELECT.
(16) Enter SET PATENT DERWENT at an arrow prompt (=>) to SELECT or ANALYZE patent, application, and priority numbers in Derwent
format.
(17) Selects or analyzes the Basic Patent Application Numbers and appends /AP to the terms created by SELECT.
(18) Appends /AP to the terms created by SELECT.
(19) Selects or analyzes the AP and PRN and appends /APPS to the terms created by SELECT.
(20) Selects or analyzes the AP.B and PRN.B and appends /APPS to the terms created by SELECT.
(21) Appends /AY to the terms created by SELECT.
(22) Selects or analyzes the country codes from PI and DS and appends /PCS to the terms created by SELECT.
(23) Selects or analyzes the country codes from PI.B and DS.B and appends /PCS to the terms created by SELECT.
(24) Appends /PC to the terms created by SELECT.
(25) Appends /CY.CNT to the terms created by SELECT.
(26) Selects or analyzes the Patent Numbers and appends /PN to the terms created by SELECT.
(27) Selects or analyzes the Basic Patent Numbers and appends /PN to the terms created by SELECT.
(28) Appends /PK to the terms created by SELECT.
(29) Appends /PN to the terms created by SELECT.
(30) Appends /PATS to the terms created by SELECT.
(31) Appends /PN.CNT to the terms created by SELECT.
(32) Appends /PRC to the terms created by SELECT.
(33) Appends /PRD to the terms created by SELECT.
(34) Selects or analyzes Priority Application Numbers and appends /PRN to the terms created by SELECT.
(35) Selects or analyzes Basic Priority Application Numbers and appends /PRN to the terms created by SELECT.
(36) Appends /PRN to the terms created by SELECT.
(37) Appends /PRY to the terms created by SELECT.
(38) Appends /PY to the terms created by SELECT.
(39) Selects or analyzes the CODEN and ISSN and appends /SO to the terms created by SELECT.
(40) Appends /DT to the terms created by SELECT.

November 2023

14
CASREACTSample Records
DISPLAY FCRDREF

L4ANSWER 1 OF 1

CASREACTCOPYRIGHT 2009 ACS on STN

CASREACTCOPYRIGHT 2009 ACS on STNDISPLAY FHITL4ANSWER 1 OF 1

RX(4) OF 6 COMPOSED OF RX(1), RX(2)RX(4)
A ===> F

RX(1)

RCT
RGT
PRO
CAT
SOL
NTE

A 132865-44-2
C 1333-74-0 H2
B 132865-53-3
7440-02-0 Ni
64-17-5 EtOH
Raney Ni

RX(2)

RCT
RGT
PRO
SOL

B 132865-53-3
G 10025-87-3 POCl3
F 54127-31-0
68-12-2 DMF

November 2023

15
CASREACTDISPLAY ALL (INFOCHEM File Segment)

AN
TI
AU
CS
SO

83:178776 CASREACT Full-text
Novel reaction of 5H-dibenzo[a,d]cyclohepten-5-one with hydrazine
Barcza, Sandor; Coppola, Gary M.; Hardtmann, Goetz E.; Mansukhani, Ruth I.
Chem. Res. Dep., Sandoz, Inc., East Hanover, N. J., USA
J. Org. Chem. (1975), 40(20), 2982-3
CODEN: JOCEAH
DT
JournalLA
EnglishCC27-19 (Heterocyclic Compounds (One Hetero Atom))Section cross-reference(s): 26
GI
For diagram(s), see printed CA Issue.
AB
Reaction of the title compd. (I) with H2NNH2 gave 77% II.
STdibenzocycloheptenone cyclization hydrazine; iminodibenzocycloheptenolIT
302-01-2, reactions
RL: RCT (Reactant)(cyclization of, with dibenzocycloheptenone)IT2222-33-5
RL: RCT (Reactant)(cyclization of, with hydrazine)IT
55991-62-3P
RL: RCT (Reactant); SPN (Synthetic preparation); PREP (Preparation)(prepn. and reaction with benzaldehydes)
IT
55991-63-4P
55991-64-5P
RL: SPN (Synthetic preparation); PREP (Preparation)(prepn. of)IT
120-14-9
RL: RCT (Reactant)(reaction of, with iminodibenzocycloheptenol)
IT
100-52-7, reactions
RL: RCT (Reactant)(with iminodibenzocycloheptenol)
RX(1) OF 3
A ===> B...

RX(1)

RX(2) OF 3

RCT
RGT
PRO

A 2222-33-5
C 302-01-2 N2H4B 55991-62-3
...B

+

D

===>

E

November 2023

16
CASREACT
RX(2)

RCT
PRO

B 55991-62-3, D 100-52-7
E 55991-63-4

DISPLAY ALL (INPI File Segment)

AN
1:6281 CASREACT Full-text
TI
Oxidizing o-nitrotoluene
PA
Badische Anilin- und Soda-FabrikDT
PatentLA
Unavailable
CC
10 (Organic Chemistry)
FAN.CNT 1
PATENT NO.
KIND DATEAPPLICATION NO. DATE--------------- ---- ---------------------- -------PI
DE 179589
18990730
DE
AB
Process of oxidizing o-nitrotoluene in the side chain, by means ofmanganese dioxide and sulphuric acid, to o-nitrobenzaldehyde, as well as
to carbon dioxide with excess of o-nitrotoluene, characterized byoperating above 100.degree. and preferably in closed vessels. By
variation in the concentration of the sulphuric acid, the principal
product may be either o-nitrobenzaldehyde or o-nitrobenzoic acid, theformer prevailing at 30-45.degree. B.acte.e., and the latter at
46-60.degree. B.acte.e. concentration of acid.
IT

88-72-2, Toluene, o-nitro(oxidizing in side chain)
RX(1) OF 1
A ===> B

RX(1)

RCT
PRO
SOL
NTE

A 88-72-2
B 552-89-6
7664-93-9 H2SO4Classification: Oxidation; Benzylic oxidation; # Conditions:
MnO2 H2SO4; 150 deg /P; # Comments: patent date 1906

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November 2023

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