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134334-40-0

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134334-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134334-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,3 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134334-40:
(8*1)+(7*3)+(6*4)+(5*3)+(4*3)+(3*4)+(2*4)+(1*0)=100
100 % 10 = 0
So 134334-40-0 is a valid CAS Registry Number.

134334-40-0Relevant articles and documents

Synthesis of Lactam and Ketone Precursors of 2,7-Substituted Octahydropyrrolopyrazines and Octahydro-2H-pyridopyrazines

Branden, Stefan Van den,Compernolle, Frans,Hoornaert, Georges J.

, p. 1035 - 1042 (2007/10/02)

This report describes the synthesis of the hexahydropyrrolopyrazin-6(2H)-ones 6, the hexahydropyrrolopyrazin-7(6H)-ones 7, and the hexahydro-2H-pyridopyrazin-7(6H)-ones 8, precursors of 2,7-substituted octahydropyrrolo- and octahydro-

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