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121757-20-8

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121757-20-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121757-20-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,5 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121757-20:
(8*1)+(7*2)+(6*1)+(5*7)+(4*5)+(3*7)+(2*2)+(1*0)=108
108 % 10 = 8
So 121757-20-8 is a valid CAS Registry Number.

121757-20-8Relevant articles and documents

Inhibition of human leukocyte elastase by derivatives of N-hydroxysuccinimide. A structure-activity-relationship study

Groutas,Brubaker,Stanga,Castrisos,Crowley,Schatz

, p. 1607 - 1611 (2007/10/02)

A series of compounds derived from 3-alkyl-N-hydroxysuccinimide have been synthesized and their inhibitory activity toward human leukocyte elastase has been investigated. Compounds having an isobutyl or isopropyl group at the C-3 position have been found

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