Cas 1255774-23-2,C24H25NO4

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Check Digit Verification of cas no

The CAS Registry Mumber 1255774-23-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,5,7,7 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1255774-23:
(9*1)+(8*2)+(7*5)+(6*5)+(5*7)+(4*7)+(3*4)+(2*2)+(1*3)=172
172 % 10 = 2
So 1255774-23-2 is a valid CAS Registry Number.

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1255774-23-2Relevant academic research and scientific papers

Synthesis of novel allocolchicine analogues with a pyridine c-ring through intermolecular vollhardt diyne-nitrile cyclotrimerization

Nicolaus, Norman,Schmalz, Hans-Günther

experimental part, p. 2071 - 2074 (2010/10/20)

A short synthesis of new allocolchicinoids with a pyridine C-ring and an oxa-B-ring was developed exploiting a cobalt-catalyzed intermolecular [2+2+2] cycloaddition (diyne-nitrile cyclotrimerization). Starting from readily accessible 3,4,5-trimethoxybenza

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