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Screenshot of the CAS Common Chemistry database with information about caffeine ().. A CAS Registry Number [1] (also referred to as CAS RN [2] or informally CAS Number) is a unique identification number, assigned by the Chemical Abstracts Service (CAS) in the US to every chemical substance described in the open scientific literature, in order to index the substance in the CAS Registry.
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Chemical Abstracts Service Building B in August 2009. Columbus, Ohio. STN (Scientific & Technical Information Network) International is operated jointly [4] by CAS and FIZ Karlsruhe, and is intended primarily for information professionals, using a command language interface.
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This is a list of CAS numbers by chemical formulas and chemical compounds, indexed by formula.The CAS number is a unique number applied to a specific chemical by the Chemical Abstracts Service (CAS).This list complements alternative listings to be found at list of inorganic compounds and glossary of chemical formulae
Among other things, the value of Ke and the Cost of Debt (COD) [6] enables management to arbitrate different forms of short and long term financing for various types of expenditures. Ke applies most prominently to companies that regularly generate excess capital (free cash flow, cash on hand) from ongoing operations.
CAS registry numbers are unique numerical identifiers for chemical elements, compounds, polymers, biological sequences, mixtures and alloys. They are also referred to as CAS numbers , CAS RNs or CAS #s .
CAS applies to contracts, not contractors, through Federal Acquisition Regulation clauses. A company may have contracts that are subject to "full" CAS coverage (be required to follow all 19 standards), "modified" CAS coverage (required to follow only Standards 401, 402, 405, and 406), simultaneously have contracts that are subject to either modified or full coverage, or be exempt from coverage.