Chemical Abstracts Service (CAS) ( Visit this link)
ChemicalAbstracts Service, CAS, is the producer of Chemical Abstracts, SciFinder,SciFinder Scholar, and also operates STN International andthe web based STN Easy online searching services which provide access tochemical and scientific information from some 200 databasescovering topics such as chemistry, engineering, patents, medicineregulatory data and business. CAS also produces currentawareness publications, cd-rom, and software products such as STNExpress with Discover. CAS provides full customer trainingwith regularly scheduled workshops and user meetings throughout theworld. World's largest and most comprehensive chemical database with over 21 million document records and 37 million substances listed.
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