CAS號(Chemical Abstracts Service)是美國化學(xué)文摘登記號,該號是用來判定檢索有多個名稱的化學(xué)物質(zhì)信息的重要工具.
What is CAS?
A.CAS (Chemical Abstracts Service) is a division of the American Chemical Society.We are located in Columbus,Ohio.CAS is the producer of the largest and most comprehensive databases of chemical information.Our principal databases are Chemical Abstracts (CA) which contains over 23 million document records from the chemical journal and patent literature,and Registry which contains over 24 million substance and 50 million sequence records
CAS also operates the STN International online service with partner organizations in Europe and Asia.STN provides access to nearly 200 databases covering topics such as science,technology,patents,and business information.