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221876-38-6

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221876-38-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221876-38-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,8,7 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 221876-38:
(8*2)+(7*2)+(6*1)+(5*8)+(4*7)+(3*6)+(2*3)+(1*8)=136
136 % 10 = 6
So 221876-38-6 is a valid CAS Registry Number.

221876-38-6Relevant articles and documents

CuCN-mediated cascade cyclization of 4-(2-bromophenyl)-2-butenoates: A high-yield synthesis of substituted naphthalene amino esters

Reddy, R. Santhosh,Prasad, Pragati K,Ahuja, Brij Bhushan,Sudalai, Arumugam

, p. 5045 - 5050 (2013/06/27)

A new method of CuCN-mediated one-pot cyclization of 4-(2-bromophenyl)-2- butenoates leading to efficient synthesis of substituted naphthalene amino esters including phenanthrene aromatic structural units is described. Deuterium labeling studies establish

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