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53871-74-2

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53871-74-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53871-74-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,8,7 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 53871-74:
(7*5)+(6*3)+(5*8)+(4*7)+(3*1)+(2*7)+(1*4)=142
142 % 10 = 2
So 53871-74-2 is a valid CAS Registry Number.

53871-74-2Relevant articles and documents

The Chemistry of N-Substituted Benzotriazoles; Part 11. The preparation of Tertiary Amines Containing Tertiary-Alkyl Groups from Ketones, Secondary Amines, and Organometallic Reagents

Katritzky, Alan R.,Najzarek, Zbigniew,Dega-Szafran, Zofia

, p. 66 - 69 (2007/10/02)

The preparation of important pharmaceutically active highly branched tertiary amines by the reaction of Grignard reagents with adducts of cyclic ketones, benzotriazole (or pyrazole) and secondary amines is far superior to previously available routes.

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