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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.
[6] [7] In 2017 the ACS released SciFinder-n as a web-only product with the same data content and improved user interface and search functions. [ 8 ] SciFinder is considered as the best source of chemical information worldwide, with substantially larger number of relevant information sources than Web of Science or Scopus with Reaxys . [ 9 ]
CAS number C 10 H 16 N 2 O 8: Ethylenediaminetetraacetic acid (EDTA) 6381–92–6 C 12 H 22 O 11: sucrose: 57–50–1 C 18 H 29 O 3 S: sodium dodecyl benzenesulfonate: 2155–30–0 C 20 H 25 N 30: Lysergic acid diethylamide (LSD) 50–37–3 C 123 H 193 N 35 O 37: Common serum albumin (macromolecule) 9048–49–1 Ca(AlH 4) 2: calcium ...
major conformers with its 3D and easy search on them M good correlated with PubChem on data that is available on PubChem "HugeMDB". 102 million ICSC ILO International Chemical Safety Cards International Labour Organization: CAS, EC number, UNnumber "ICSC". 1784 ICSD Inorganic Crystal Structure Database: FIZ Karlsruhe GmbH "ICSD". 161,030 IEDB
In 1874, a group of American chemists gathered at the Joseph Priestley House to mark the 100th anniversary of Priestley's discovery of oxygen.Although there was an American scientific society at that time (the American Association for the Advancement of Science, founded in 1848), the growth of chemistry in the U.S. prompted those assembled to consider founding a new society that would focus ...
Reagent Chemicals [a] is a publication of the American Chemical Society (ACS) Committee on Analytical Reagents, [1] detailing standards of purity for over four hundred of the most widely used chemicals in laboratory analyses and chemical research. Chemicals that meet this standard may be sold as "ACS Reagent Grade" materials.
Diethyl sulfate is used to an alkylating agent to prepare ethyl ethers, ethyl amines [4] and ammonium salts, and ethyl thioethers. In preparing ethyl esters of fatty acids, both equivalents of the ethyl electrophile are transferred, unlike the usual alkylation of phenoxides: [1]
Hydrated chloroacetaldehyde is produced by the chlorination of aqueous vinyl chloride: . ClCH=CH 2 + Cl 2 + H 2 O → ClCH 2 CHO + 2 HCl. It can also be prepared from vinyl acetate [5] or by careful chlorination of acetaldehyde. [1]