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Diphenyl disulfide is usually prepared by the oxidation of thiophenol: . 2 PhSH + I 2 → Ph 2 S 2 + 2 HI Hydrogen peroxide can also be used as the oxidant. [2] Ph 2 S 2 is rarely prepared in the laboratory because it is inexpensive, and the precursor has a disagreeable odour.
CAS number NBr 3: nitrogen tribromide: 15162–90–0 NCl 3: nitrogen trichloride: 10025–85–1 NF 3: nitrogen trifluoride: 7783–54–2 NH 3: ammonia: 7664–41–7 NH 4 Cl: ammonium chloride: 12125–02–9 NH 4 HCO 3: ammonium bicarbonate: 1066–33–7 NH 4 NO 3: ammonium nitrate: 6484–52–2 NH 4 OH: ammonium hydroxide: 1336–21–6 ...
A Law Reference Collection, 2011, ISBN 1624680003 and ISBN 978-1-62468-000-7 Trinxet, Salvador. Trinxet Reverse Dictionary of Legal Abbreviations and Acronyms , 2011, ISBN 1624680011 and ISBN 978-1-62468-001-4 .
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.
This is a list of common chemical compounds with chemical formulae and CAS numbers, ... 4377-33-7 C 6 H 6 IN: 4-iodoaniline: 540-37-4 C 6 H 6 N 2 O: nicotinamide: 98 ...
This is the only sublayer that must occur in every InChI. Numbers used throughout the InChI are given in the formula's element order excluding hydrogen atoms. For example, "/C10H16N5O13P3" implies that atoms numbered 1–10 are carbons, 11–15 are nitrogens, 16–28 are oxygens, and 29–31 are phosphorus. [11] Atom connections (prefix: "c ...
Chemical nomenclature however (with IUPAC nomenclature as the best example) is necessarily more restrictive: Its purpose is to standardize communication and practice so that, when a chemical term is used it has a fixed meaning relating to chemical structure, thereby giving insights into chemical properties and derived molecular functions. These ...
Triazabicyclodecene (1,5,7-triazabicyclo[4.4.0]dec-5-ene or TBD) is an organic compound consisting of a bicyclic guanidine. For a charge-neutral compound, it is a relatively strong base that is effective for a variety of organic transformations.