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204641-55-4

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204641-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204641-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,6,4 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 204641-55:
(8*2)+(7*0)+(6*4)+(5*6)+(4*4)+(3*1)+(2*5)+(1*5)=104
104 % 10 = 4
So 204641-55-4 is a valid CAS Registry Number.

204641-55-4Relevant articles and documents

Method for producing substituted thiopyridines

-

, (2008/06/13)

A process for preparing thiopyridines of the formula I where the substituents are as defined in the description.

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