Cas 1256263-83-8,1-(4-chloro-2-isocyanophenyl)ethanone

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Check Digit Verification of cas no

The CAS Registry Mumber 1256263-83-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,2,6 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1256263-83:
(9*1)+(8*2)+(7*5)+(6*6)+(5*2)+(4*6)+(3*3)+(2*8)+(1*3)=158
158 % 10 = 8
So 1256263-83-8 is a valid CAS Registry Number.

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1256263-83-8Relevant articles and documents

Cyclization reactions of 2-isothiocyanatophenyl ketones giving 4-hydroxyquinoline-2(1H)-thiones and 4-alkylidene-1,4-dihydro-3,1-benzoxazine-2- thiones

Kobayashi, Kazuhiro,Komatsu, Toshihide,Fukamachi, Shuhei,Konishi, Hisatoshi

experimental part, p. 2097 - 2104 (2011/04/24)

2-Isothiocyanatophenyl methyl ketones, generated in situ by treatment of 2-isocyanophenyl methyl ketones with sulfur in the presence of a catalytic amount of selenium and excess triethylamine, underwent electrocyclic reaction (ECR) via their enolate forms

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1256263-83-8