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1263407-33-5

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1263407-33-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1263407-33-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,3,4,0 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1263407-33:
(9*1)+(8*2)+(7*6)+(6*3)+(5*4)+(4*0)+(3*7)+(2*3)+(1*3)=135
135 % 10 = 5
So 1263407-33-5 is a valid CAS Registry Number.

1263407-33-5Relevant articles and documents

An improvement to the preparation of prasugrel hydrochloride

Ou, Wenhua,Yi, Weiyin,Liu, Feng,Pan, Xianhua,Peng, Xijiang

, p. 369 - 371 (2013/07/26)

An efficient synthesis of prasugrel, a thienopyridine ADP-receptor antagonists, is described. A thienopyridine intermediate was prepared by N-protection, boric acid substitution and N-substitution. After acid hydrolysis of the methyl ether and subsequent acetylation, prasugrel was obtained with a total yield of 50% after seven linear steps from 4,5,6,7-tetrahydrothieno [3,2-c]pyridine and 2-bromo-1-cyclopropyl-2-(2- fluorophenyl)ethan-1-one as raw materials.

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