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123771-27-7

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123771-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123771-27-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,7 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 123771-27:
(8*1)+(7*2)+(6*3)+(5*7)+(4*7)+(3*1)+(2*2)+(1*7)=117
117 % 10 = 7
So 123771-27-7 is a valid CAS Registry Number.

123771-27-7Downstream Products

123771-27-7Relevant articles and documents

Synthesis of Some Benzimidazole-, Pyridine- and Imidazole-Derived Chelating Agents

Wahlgren, Curtis G.,Addison, Anthony W.

, p. 541 - 543 (2007/10/02)

Procedures are described for the preparation of various bidentate and potentially tridentate chelating agents.These incorporate pyridyl, benzimidazole, imidazole or phenolic moieties.Phillips condensations of carboxylic acids with o-phenylenediamines were carried out in 4 M hydrochloric acid.Syntheses are reported for 2,6-bis(N'-methylimidazol-2'-ylthiomethyl)pyridine, 2,6-bis(benzimidazol-2'-ylthiomethyl)pyridine, 2-(4'-piperidyl)benzimidazole, 2-(3'-piperidyl)benzimidazole, 2-(3-N'-methylpiperidyl)benzimidazole, 2-(3-N'-methylpiperidyl)-N-methylbenzimidazole, 2-(2'-hydroxybenzyl)benzimidazole and 2-(2'-hydroxybenzyl)-N-methylbenzimidazole.The compounds were characterized where appropriate by their mass, uv, and 1H-nmr spectra. 2-(2'-Hydroxybenzyl)benzimidazole hydrochloride acts as a gelling agent in aqueous solution.

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