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1420880-39-2

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1420880-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1420880-39-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,0,8,8 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1420880-39:
(9*1)+(8*4)+(7*2)+(6*0)+(5*8)+(4*8)+(3*0)+(2*3)+(1*9)=142
142 % 10 = 2
So 1420880-39-2 is a valid CAS Registry Number.

1420880-39-2Relevant articles and documents

Synthesis of deuterium-labeled olmesartan and candesartan

Zhang, Chi,Shen, Zucheng,Tian, Lei,Chen, Liqin

, p. 401 - 405 (2013/01/15)

This paper describes the synthesis of deuterium-labeled olmesartan and candesartan. The two desired compounds both used [2H4] 2-cyano-4'-methyl-biphenyl as deuterium-labeled reagent, which was synthesized beforehand in two steps. [2H4] olmesartan was synthesized in six steps further with 17% overall yield, and [2H4] candesartan was synthesized in seven steps further with 13% overall yield. Copyright 2012 John Wiley & Sons, Ltd. This paper describes the synthesis of deuterium-labeled olmesartan and candesartan. The two desired compounds both used [2H4] 2-cyano-4'-methyl-biphenyl as deuterium-labeled reagent, which was synthesized beforehand in two steps. [ 2H4] olmesartan was synthesized in a further six steps with a 17% overall yield, and [2H4] candesartan was synthesized in a further seven steps with a 13% overall yield. Copyright

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