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SciFinder Content at a Glance - Substance Information - CAS REGISTRY

When you need a structure image, CAS Registry Number, and all the names that describe a particular substance, make SciFinder part of the process.

Benefit to you

You can obtain the substance information you need from millions of substances from the most current and reliable collection of chemical substance information in the world.

Content

CAS REGISTRY, produced by CAS, is the most authoritative collection of disclosed chemical substance information

• contains more than 36 million organic and inorganic substances and 60 million sequences
• is updated daily

REGISTRY contains information about the many different types of substances, including sequences, that have been reported over the years in the scientific literature:

• Alloys
• Coordination compounds
• Minerals
• Mixtures
• Polymers
• Salts
• Sequences

Information pertaining to these substances has been enriched with the following:

• Calculated properties
• Experimental property data

Coverage

1957 to the present, with additional substances going back to the early 1900s.

Substance information is added to CAS REGISTRY from several different sources:

• CAS Registry System - the computer system that automatically identifies and catalogs all substance information that CAS selects from journal articles, patents, conference proceedings, and other published sources to include in Chemical Abstracts (CA).
• GenBank (registered trademark of the U.S. Department of Health and Human Services) - a database repository containing millions of sequences
• Special collections of substance data
  • Substance information listed on various international, national, and state regulatory inventories and lists such as TSCA or EINECS to which CAS has assigned CAS Registry Numbers
  • Experimental property data collected by CAS scientists in the course of monitoring the scientific literature and from selected other sources
  • Values for calculated properties obtained using CAS data and software from ACD/Labs, Toronto, Canada

Update frequency

Updated daily with approximately 12,000 new substance records

Explore by

To obtain substance information you can explore by any of the following:

• Chemical structure
• Substance identifier
• Molecular formula

Visit SciFinder How To Guides to see examples of the above and more.