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400019-81-0

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400019-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 400019-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,0,0,1 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 400019-81:
(8*4)+(7*0)+(6*0)+(5*0)+(4*1)+(3*9)+(2*8)+(1*1)=80
80 % 10 = 0
So 400019-81-0 is a valid CAS Registry Number.

400019-81-0Relevant academic research and scientific papers

Convenient synthesis of (3S,5S)-5-hydroxy- and (3R,5S)-5-chloropiperazic acids of a peptide antibiotic, monamycin G3

Ushiyama, Reiko,Yonezawa, Yasuchika,Shin, Chung-Gi

, p. 1172 - 1173 (2007/10/03)

Convenient synthesis of (3S,5S)-5-hydroxy- and (3R,5S)-5-chloropiperazic acids, which are the important constituting moieties of an antibiotic monamycin G3, and their possible stereoisomers constructing of similar antibiotics was achieved from

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