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1207671-54-2

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1207671-54-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1207671-54-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,7,6,7 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1207671-54:
(9*1)+(8*2)+(7*0)+(6*7)+(5*6)+(4*7)+(3*1)+(2*5)+(1*4)=142
142 % 10 = 2
So 1207671-54-2 is a valid CAS Registry Number.

1207671-54-2Relevant articles and documents

Efficient methods for the synthesis of thieno[3,2-b]thiophene and thieno[3,2-b]furan derivatives

Shirinian, Valerii Z.,Shimkin, Alexey A.,Tipikin, Stepan N.,Krayushkin, Mikhail M.

experimental part, p. 3803 - 3806 (2010/03/26)

A novel approach to the synthesis of thieno[3,2b]thiophenes and thieno[3,2-b]furans bearing various substituents from readily accessible starting materials has been developed. The methodology is based on C- and O-alkylation of ethyl 4-hydroxy-2methylthiop

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