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安裝中文字典英文字典辭典工具!

安裝中文字典英文字典辭典工具!








  • 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
  • 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 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
  • 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 Registry Number - A Research Guide of Chemistry Sources - Research . . .
    You can also identify your substance of interest by its CAS Registry Number®, which is universally used to provide a unique, unmistakable identifier for chemical substances
  • Chemical Abstracts Service - Wikipedia
    CAS (Chemical Abstracts Service) is a division of the American Chemical Society It is a source of chemical information and is located in Columbus, Ohio, United States
  • 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


















中文字典-英文字典  2005-2009

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