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117998-08-0

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117998-08-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117998-08-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,9 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117998-08:
(8*1)+(7*1)+(6*7)+(5*9)+(4*9)+(3*8)+(2*0)+(1*8)=170
170 % 10 = 0
So 117998-08-0 is a valid CAS Registry Number.

117998-08-0Relevant articles and documents

α-CYANO-β-STYRENYL ESTERS FOR AMIDE BOND FORMATION

Roose, B.,Anteunis, M. J. O.,Tavernier, D.

, p. 267 - 270 (2007/10/02)

p-X-α-cyano-β-styrenyl esters (X = H, Cl, CF3, NO2) of N-benzyloxycarbonyl valine were prepared.The rate constant for amide formation with methyl valinate was assayed; it increases with increasing electron attracting power of the para substituent.The N-hydroxysuccinimidoyl ester and the p-H-α-cyano-β-styrenyl ester of valine have comparable reactivities.

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