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55783-47-6

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55783-47-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55783-47-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,8 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 55783-47:
(7*5)+(6*5)+(5*7)+(4*8)+(3*3)+(2*4)+(1*7)=156
156 % 10 = 6
So 55783-47-6 is a valid CAS Registry Number.

55783-47-6Relevant articles and documents

INTERMEDIATES FOR THE SYNTHESIS OF BENZIMIDAZOLE COMPOUNDS AND PROCESS FOR THE PREPARATION THEREOF

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Page 59, (2010/01/31)

This invention provides a process for the preparation of a benzimidazole derivative (I) or a pharmaceutically acceptable salt thereof,wherein R1is C1-C6alkyl, C1-C6alkoxyl, etc., R2is C1-C6alkyl, and R3is hydrogen or a protecting group, which exhibits excellent hypoglycemic action, said process comprising condensation of an amine derivative (III) with a carboxylic acid derivatives (II) to afford a compound (IV), followed by cyclization of compound (IV) in the presence of an acid.

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