These are the databases available on STN that can be accessed under the Academic Account subscribed to by Carthage College Library. The Academic Account can be accessed only from 5:00pm to 5:00am, Sunday through Thursday; Friday, 5:00pm ‑10:00pm; Saturday, 2:00am ‑ 12:00noon. STN can be accessed via the Library Home Page. Click on Locating Articles – STN (located under Sciences)

CA
Producer: Chemical Abstracts Service
Coverage: 1967 - to date
File Size: 13.8 million records (11/97)
Updated: Weekly
File 'Type: Bibliographic
Content: Biochemistry, chemistry, and chemical engineering
Language: English

Cluster: AGRICULTURE, ALLBIB, AUTHORS, BIOSCIENCE, CASLINK, CASRNS CHEMENG, CHEMISTRY, CORPSOURCE, ENVIRONMENT, FUELS, GEOSCIENCE, GOVREGS, HEALTH, MATERIAS, MEDICINE, METALS, PATENTS, PETROLEUM, PHARMACOLOGY, POLYMERS, SAFETY, TOXICOLOGY

The Chemical Abstracts database covers all areas of biochemistry, chemistry, and chemical engineering. CA contains records for documents reported in printed Chemical Abstracts (CA) from 1967 to the present. Current sources include over 9,000 journals, patents from 26 countries and two international patent organizations, technical reports, books, conference proceedings, and dissertations. Bibliographic terms, indexing terms, and CAS Registry Numbers are searchable. Over 87% of the records also contain CA abstracts, the text of which is searchable. A learning file LCA is available.

CAOLD
Producer: Chemical Abstracts Service
Coverage: 1957‑1966
File Size: 695,000 records
Updated: Intermittently to process changes and corrections
File Type: Bibliographic
Content: Biochemistry, chemistry, and chemical engineering
Language: English

Cluster: CASRNS

Available only on STN, CAOLD contains records for Chemical Abstracts (CA) references prior to 1967. Each record in CAOLD contains a CA reference number, CAS registry Numbers for one or more chemical substances cited in the reference, and a document type for patents. References were added to this file from the CA 6th and 7th Collective indexes. CAS Registry Numbers are searchable.


CIN
Producer: Chemical Abstracts Service
Coverage: 1974‑to date
File Size: 1.2 million records (10/97)
Updated: Weekly
File Type: Bibliographic
Content: Chemical business
Language: English

Cluster: AGRICULTURE, ALLBIB, BIOSCIENCE, BUSINESS, CASRNS, CHEMENG, CHEMISTRY, COMPANIES, ENGINEERING, ENVIRONMENT, FUELS, GOVREGS, HEALTH, MATERIAS, METALS, PETROLEUM, PHARMACOLOGY, POLYMERS, SAFETY .

CIN is the online version of Chemical Industry Notes, which covers information related to the chemical business industry. Sources for CIN include both U.S. and non‑U.S. journals, trade magazine, newspapers, and newsletters. Bibliographic information, indexing terms, titles, abstracts, CAS Registry Numbers, and chemical names are searchable. An online thesaurus is available for the Geographic Terms (/GT) field.


LCA
Producer: Chemical Abstracts Service
Coverage: Selected records from 1969, 1974, 1979, 1984, 1987, and 1988
File Size: 65,000 records
Updated: Not updated
File Type: Bibliographic
Content: Training
Language: English

Cluster: LEARNING

LCA is a training database for learning how to use the CA file. LCA contains records for documents covered in eight weekly issues of Chemical Abstracts (CA), two each from 1969, 1974, 1979, and 1984 (representing the 8th, 9th, 10th, and 11th Collective Index periods) as well as references from LCASREACT (1987 and 1988).


LCASREACT
Producer: Chemical Abstracts Service
Coverage: Selected records from 1985 ‑ 1988.
File Size: 471 records (10,145 single‑step reactions and 21,477 multi‑step reactions)
Updates: Not updated
File Type: Bibliographic, Structure
Content: Training
Language: English

Cluster: LEARNING

LCASREACT is a training database for learning how to use the CASREACT File and contains single‑step and multistep reactions from journals indexed in the Organic Sections of CA (Sections 22 - 34).


LMARPAT
Producer: Chemical Abstracts Service
Coverage: Selected records from 1988 and 1989
File Size: 569 records
Updates: Not updated
File Type: Structure, Bibliographic
Content: Training, Markush structures
Language: English

Cluster: LEARNING

LMARPAT is a training file for learning how to use the MARPAT Filc and contains the Markush structure records for patents cited in the CA file. Structures are searchable and displayable. Bibliographic information, abstracts, and indepth substance and subject indexing of the original CA file record are displayable.


LREGISTRY
Producer: Chemical Abstracts Service
Coverage: Substances indexed in the LCA and LCASREACT files
File Size: 125,000 records
Updates: In conjunction with REGISTRY file
File Type: Structure
Content: Training
Language: English

Cluster LEARNING

LREGISTRY is a training database for learning how to use the REGISTRY File. Records contain substance information, including a structure and the CAS Registry Number, and correspond to substances indexed in LCA and LCASREACT.


REGISTRY
Producer: Chemical Abstracts Service
Coverage: 1957 to date
File Size: 17 million records (11/97)
Updates: Weekly
File Type: Structure
Content: Chemical substances
Language: English

Cluster: CASLINK, CASRNS, HCASLINK, STRUCTURE

The REGISTRY file is a chemical structure and dictionary database that contains unique substance records identified by CAS. Records contain CAS Registry Numbers, CA index names, commonly used synonyms, polymer class terms, structure diagrams (many with sterochemical information), and molecular formulas, all which are searchable. Substances containing rings may be retrieved using ring system data; alloys may be retrieved using alloy composition information; polymers maybe retrieved using polymer class terms; and protein and nucleic acid sequences may be retrieved using codes for the amino acids or nucleotides. The total number of citations to substances in CA, CA‑previews, and CAOLD tiles is both searchable and displayable. The ten most recent CA file documents citing the substance since 1967 are displayable in the REGISTRY file. The LC field indicates other STN files that contain information on the substance and indicates regulatory listings where the substance may occur: