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79809-14-6

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79809-14-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79809-14-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,0 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 79809-14:
(7*7)+(6*9)+(5*8)+(4*0)+(3*9)+(2*1)+(1*4)=176
176 % 10 = 6
So 79809-14-6 is a valid CAS Registry Number.

79809-14-6Relevant articles and documents

SYNTHETIC APPLICATION OF LITHIATION REACTIONS - XVI: SYNTHESES OF (+/-)TETRAHYDROPALMATINE, (+/-)CANADINE, (+/-)STYLOPINE AND (+/-)SINACTINE

Narasimhan, N. S.,Mali, R. S.,Kulkarni, B. K.

, p. 1975 - 1982 (1983)

N,N-Dimethyl-3,4-dimethoxy- and methylenedioxybenzylamines were lithiated and the organolithium intermediates treated with paraformaldehyde to give the 2-hydroxymethyl derivatives.The latter were converted to 7,8-dimethoxy- and methylenedioxyisochroman-3-ones through successive reaction with ClCOOEt, KCN and KOH.The isochromanones on condensation with homoveratrylamine or homopiperonylamine, followed by cyclisation and reduction furnished the protoberberine alkaloids.

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