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  • CAS REGISTRY®
    CAS REGISTRY®, the CAS substance collection, is the premier source relied upon by scientists and regulators worldwide for accurate information on chemical substances
  • CAS Registry Number - Wikipedia
    CAS Registry Numbers (CAS RN) are simple and regular, convenient for database searches They offer a reliable, common and international link to every specific substance across the various nomenclatures and disciplines used by branches of science, industry, and regulatory bodies
  • CAS Number Search - NIST Chemistry WebBook
    CAS registry numbers are copyrighted by the American Chemical Society Redistribution rights for CAS registry numbers are reserved by the American Chemical Society
  • Casualty Actuarial Society
    Founded in 1914, the CAS is the world’s only actuarial organization focused exclusively on property and casualty risks and serves over 11,000 members worldwide
  • Name, CAS No. , Molecular Formula, SMILES, InChIKey, EINECS Search . . .
    ChemSrc offers quick search by Name, CAS No , Formula, SMILES, InChIKey, or EINECS Access professional data for millions of compounds, including Physical Chemical Properties, MSDS, Safety Information, Synthetic Routes Literature, Toxicity, Up Downstream Products, and Journal References
  • ChemIndex - a free chemical CAS search database
    A free chemical CAS search database with chemical suppliers directory provided by ChemIndex
  • CAS Data
    The CAS reference collection aggregates and connects scientific knowledge from thousands of journals and other sources published globally in more than 50 languages dating back to the early 1800s
  • List of CAS numbers by chemical compound - Wikipedia
    This is a list of CAS numbers by chemical formulas and chemical compounds, indexed by formula The CAS number is a unique number applied to a specific chemical by the Chemical Abstracts Service (CAS)
  • CAS SciFinder - Chemical Compound Database
    CAS SciFinder is curated by scientists and enhanced with AI-assisted tools to give you the insights you need with one simple search Access the world’s most comprehensive chemical substance and reaction data
  • CAS Common Chemistry
    Quickly confirm chemical names, CAS Registry Numbers®, structures or basic physical properties by searching compounds of general interest or leveraging an API connection





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