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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
  • 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
  • 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
  • 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
  • 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
  • CAS SciFinder - Chemical Compound Database
    Access the world’s most comprehensive chemical substance and reaction data Search by structure, name, CAS Registry Number®, or spectra data Uncover relevant literature, patents, and regulatory information quickly Retrosynthesis requires strong data and powerful tools
  • Identify chemical substances | CAS SciFinder
    Access current, accurate chemical substance information powered by a comprehensive database
















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