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4-acetyl-3'-ethyl-3,4'-dimethyl-5,5'-methanediyl-bis-pyrrole-2-carboxylic acid 2-benzyl ester 2'-methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

30683-55-7

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30683-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30683-55-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,8 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 30683-55:
(7*3)+(6*0)+(5*6)+(4*8)+(3*3)+(2*5)+(1*5)=107
107 % 10 = 7
So 30683-55-7 is a valid CAS Registry Number.

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