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1261947-54-9

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1261947-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1261947-54-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,1,9,4 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1261947-54:
(9*1)+(8*2)+(7*6)+(6*1)+(5*9)+(4*4)+(3*7)+(2*5)+(1*4)=169
169 % 10 = 9
So 1261947-54-9 is a valid CAS Registry Number.

1261947-54-9Relevant articles and documents

Ruthenium(II)-catalyzed protocol for preparation of diverse α,β- and β,β-Dihaloenones from diazodicarbonyls

Magar, Krishna Bahadur Somai,Lee, Yong Rok

, p. 3422 - 3432 (2015/02/02)

Efficient one-step syntheses of α,β- and β,β-dihaloenones were achieved by ruthenium(II)- catalyzed reactions between cyclic or acyclic diazodicarbonyl compounds and oxalyl chloride or oxalyl bromide in moderate to good yields. This methodology offers sev

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