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Ask REGgie: Refining CAS REGISTRY^SM search results by supplier or database

Q.  How can I use information in the Source of Registration (SR) field to limit my substance answer set?

A.  Now that the second line of the SR field is searchable, it's easier to refine REGISTRY answer sets on the basis of a particular supplier or database.

As the most authoritative collection of disclosed chemical substance information, REGISTRY includes not only substances registered by CAS scientists from journal articles, patents, conference proceedings, and other published sources, but also millions of substances from external sources such as regulatory inventories, suppliers, catalogs, or other collections of substances to which CAS has assigned CAS Registry Numbers.

Now the entire content of the Source of Registration (SR) field is searchable, including supplier and database information in the second line of the SR field.  This information was added to the SR field if a substance from a supplier or database was new to REGISTRY at the time the source was processed.

Examples:

SR   Chemical Library
       Supplier: Scientific Exchange, Inc.
SR   Chemical Catalog
       Supplier: AKos Consulting and Solutions GmbH
SR   Other Sources
       Database: ChemBank (The Broad Institute)
SR   Other Sources
       Database: NCGC (NIH Chemical Genomics Center)
SR   Other Sources
       Database: Developmental Therapeutics Program (National Cancer Institute)
SR   Other Sources
       Database: San Diego Center for Chemical Genomics (Burnham Institute for 
       Molecular Research)

With this enhancement, you can now easily refine your search results by using the supplier or database information in the SR field.

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Exclude records for substances registered from any external databases.

L1      STRUCTURE UPLOADED

=> S L1 FULL
FULL SEARCH INITIATED 16:21:16 FILE 'REGISTRY' 
FULL SCREEN SEARCH COMPLETED -    17665 TO ITERATE
100.0% PROCESSED    17665 ITERATIONS                  777 ANSWERS
SEARCH TIME: 00.00.01
L2          777 SEA SSS FUL L1
=> S L2 NOT DATABASE/SR
       1452506 DATABASE/SR
L3         761 L2 NOT DATABASE/SR
=> D L3 SR   
L3   ANSWER 1 OF 761  REGISTRY  COPYRIGHT 2009 ACS on STN 
SR   CA  

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Additional resources

For more information about REGISTRY, see the STN Database Summary Sheet.