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1421916-91-7

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1421916-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421916-91-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,9,1 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1421916-91:
(9*1)+(8*4)+(7*2)+(6*1)+(5*9)+(4*1)+(3*6)+(2*9)+(1*1)=147
147 % 10 = 7
So 1421916-91-7 is a valid CAS Registry Number.

1421916-91-7Relevant articles and documents

Synthesis of 14′,15′-dehydro-ritterazine y via reductive and oxidative functionalizations of hecogenin acetate

Kou, Yi,Cheun, Young,Koag, Myong Chul,Lee, Seongmin

, p. 304 - 311 (2013/02/23)

An analog of ritterazine Y was synthesized from hecogenin acetate in 23 steps via functional group manipulations of hecogenin acetate. Preparation of the north G and south Y units and the late stage Guo-Fuchs asymmetric coupling of the both units afforded

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