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138743-12-1

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138743-12-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138743-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,4 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138743-12:
(8*1)+(7*3)+(6*8)+(5*7)+(4*4)+(3*3)+(2*1)+(1*2)=141
141 % 10 = 1
So 138743-12-1 is a valid CAS Registry Number.

138743-12-1Downstream Products

138743-12-1Relevant articles and documents

SYNTHESIS OF 17β-ESTRADIOL DERIVATIVES WITH N-BUTYL, N-METHYL ALKYLAMIDE SIDE CHAIN AT POSITION 15

Poirier, Donald,Merand, Yves,Labrie, Fernand

, p. 7751 - 7766 (2007/10/02)

New derivatives of 17-β-estradiol with N-butyl, N-methyl alkylamide side chains of three different lengths at position 15 have been synthesized from estrone.Compounds 5 and 6 having a shorter alkylamide chain were obtained in eleven steps by introduction

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