Cas 64938-92-7,telisatin A

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Check Digit Verification of cas no

The CAS Registry Mumber 64938-92-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,9,3 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64938-92:
(7*6)+(6*4)+(5*9)+(4*3)+(3*8)+(2*9)+(1*2)=167
167 % 10 = 7
So 64938-92-7 is a valid CAS Registry Number.

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64938-92-7Relevant articles and documents

A Regioselective Entry to 13-Substituted 8-Oxoprotoberberines. Total Synthesis of (+/-)-Corydaline

Saa, Carlos,Guitian, Enrique,Castedo, Luis,Suau, Rafael,Saa, Jose Manuel

, p. 2781 - 2784 (2007/10/02)

13-Alkyl and 13-aryl substituted 8-oxoprotoberberines were obtained by interamolecular benzyne cycloaddition of isoquinolinopyrrolinediones with arynes.This convergent and highly regioselective reaction has been applied to the synthesis of (+/-)-corydalin

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64938-92-7