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127568-33-6

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127568-33-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127568-33-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,5,6 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 127568-33:
(8*1)+(7*2)+(6*7)+(5*5)+(4*6)+(3*8)+(2*3)+(1*3)=146
146 % 10 = 6
So 127568-33-6 is a valid CAS Registry Number.

127568-33-6Downstream Products

127568-33-6Relevant articles and documents

UREAS IN ORGANIC SYNTHESIS. V. REACTIONS OF AROMATIC KETONES AND 1,2-DIKETONES WITH UREAS IN FORMIC ACID

Bakibaev, A.A.,Yagovkin, A.Yu.,Filimonov, V.D.

, p. 1326 - 1331 (2007/10/02)

Urea in formic acid is a general and practical reagent for the reductive aminoformylation of benzophenones and fluoren-9-one in the synthesis of N-diarylmethylformamides, which exhibit antispasmodic activity.With benzophenone in formic acid 1,3-dimethylurea gives a high yield of N-methyl-N-benzhydrylformamide.Urea reacts selectively with benzil and benzoin, forming both the bicyclic bisurea and monocyclic nitrogen-containing heterocycles, depending on the temperature.It was proposed for the first time to use arylmethylenebisureas as reagents in reaction with benzil for the production of 1,5-diphenyl-2,4,6,8-tetraazabicyclooctane-3,7-dione or 2,4,5-triphenylimidazole.

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