CHEMICAL ABSTRACTS SERVICE: THE GOLD STANDARD FOR CHEMICAL SUBSTANCE INFORMATION
Prof. Dr. Dhrubo Jyoti Sen*
A chemical is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys. Evan Jay Crane (February 14, 1889 â€“ December 30, 1966) was an American chemist and the editor of Chemical Abstracts 1915-1958. Chemical Abstracts say about the detail history of chemical compound either organic or inorganic.
Keywords: CAS REGISTRYSM, CHEMINDEX, CAS Registry Numbers, CAplus, CASSI, CASREACTÂ®, CHEMCATSÂ®, CHEMLISTÂ®, CINÂ®, MARPATÂ®, Organic compounds, Inorganic compounds, Metals Alloys, Minerals, Coordination compounds, Organometallics, Elements, Isotopes, Nuclear part
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