Description:

The CAS REGISTRY^SM 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 stereo-chemical information), molecular formulas, and calculated physical properties, all of which are searchable. Substances containing rings may be retrieved using ring system data; alloys may be retrieved using alloy composition information; polymers may be retrieved using polymer class terms; and protein and nucleic acid sequences may be retrieved using codes for the amino acids or nucleotides. Sequence homology searching is provided through the BLAST® program. The total number of citations to substances in the CA and CAplus files is both searchable and displayable. Structure diagrams are displayable. The LC field indicates other STN files that contain information on the substance and indicates regulatory listings where the substance may occur. A learning file, LREGISTRY, is available. For con­venient choice of pricing, the ZREGISTRY file – identical to REGISTRY – is available. Z-files have no connect-hour charge and higher searchterm pricing, while the standard files have lower connect-hour charges plus searchterm fees.

Producer:

Chemical Abstracts Service
2540 Olentangy River Road
P. O. Box 3012
Columbus, Ohio 43210-0012
Phone: (+1) 614 447 3600
Fax: (+1) 614 447 3798
E-mail: help(at)cas(dot)org