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64244-33-3

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64244-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64244-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,2,4 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64244-33:
(7*6)+(6*4)+(5*2)+(4*4)+(3*4)+(2*3)+(1*3)=113
113 % 10 = 3
So 64244-33-3 is a valid CAS Registry Number.

64244-33-3Relevant articles and documents

1,2- and 1,3-Monoazabisylides as Novel Synthons

Katritzky, Alan R.,Jiang, Jinlong,Greenhill, John V.

, p. 1987 - 1988 (1993)

The 1,2- and 1,3-monoazabisylides (5 and 11, respectively) were prepared in situ by the reactions of 1-methyl>benzotriazole (betmip, 2) with diethyl phosphite anion and methylenetriphenylphosphorane, respectively, followed by treatment with butyllithium.The synthetic versatility of the new reagents 5 and 11 is illustrated by convenient methods for the preparation of isoquinoline, 2-azabutadienes, 2,3-diarylpyrroles, and 2-(3H)-benzazepine.

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