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136616-52-9

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136616-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136616-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,1 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 136616-52:
(8*1)+(7*3)+(6*6)+(5*6)+(4*1)+(3*6)+(2*5)+(1*2)=129
129 % 10 = 9
So 136616-52-9 is a valid CAS Registry Number.

136616-52-9Downstream Products

136616-52-9Relevant articles and documents

An Efficient Synthesis of 2-Vinylbenzimidazoles from 1-(2-Benzimidazole-2-ylethyl)pyridinium Salts Using an Anion-Exchange Resin

Alcalde, Ermitas,Perez-Garcia, Lluisa,Dinares, Immaculada,Frigola, Jordi

, p. 6516 - 6521 (1991)

Transformation of several 1-(2-benzimidazol-2-ylethyl)pyridinium salts, obtained by two different procedures, into their corresponding 2-vinylbenzimidazoles either using an anion-exchange resin (OH- form) or in the solid state is described.This approach now allows a facile entry into the almost unknown 2-vinylbenzimidazole monomers.

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