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161644-76-4

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161644-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161644-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,6,4 and 4 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 161644-76:
(8*1)+(7*6)+(6*1)+(5*6)+(4*4)+(3*4)+(2*7)+(1*6)=134
134 % 10 = 4
So 161644-76-4 is a valid CAS Registry Number.

161644-76-4Relevant articles and documents

A short synthesis of bicyclic dipeptides corresponding to Xxx-L-Pro and Xxx-D-Pro having constrained cis-proline amides

Curran, Timothy P.,McEnaney, Patrick M.

, p. 191 - 194 (1995)

A short synthesis that generates two isomeric bicyclic dipeptides having constrained, cis-proline amide bonds has been developed. One of these bicyclic dipeptides corresponds to an Xxx-L-Pro dipeptide (17), while the other isomer corresponds to an Xxx-D-P

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