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81177-53-9

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81177-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81177-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,7 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81177-53:
(7*8)+(6*1)+(5*1)+(4*7)+(3*7)+(2*5)+(1*3)=129
129 % 10 = 9
So 81177-53-9 is a valid CAS Registry Number.

81177-53-9Relevant articles and documents

Asymmetric synthesis via heterocyclic intermediates; VII. Enantioselective synthesis of (R)-α-amino acids using (S)-O,O-dimethyl-α-methyldopa as chiral auxiliary reagent

Schoellkopf,Hartwig,Pospischil,Kehne

, p. 966 - 969 (2007/10/02)

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