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113709-25-4

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113709-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113709-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,7,0 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 113709-25:
(8*1)+(7*1)+(6*3)+(5*7)+(4*0)+(3*9)+(2*2)+(1*5)=104
104 % 10 = 4
So 113709-25-4 is a valid CAS Registry Number.

113709-25-4Relevant articles and documents

Total Synthesis of Heptacyclic Aspidosperma Alkaloids. Part 1. Preliminary Experiments

Blowers, John W.,Brennan, James P.,Saxton, J. Edwin

, p. 2079 - 2090 (2007/10/02)

A series of model experiments is described, in which methods for the construction of the alkaloids of the obscurinervine group are developed.The penultimate intermediate (44) in a synthesis of the obscurinervidine analogue lacking only the aromatic methoxy groups has been prepared.

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