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1352221-13-6

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1352221-13-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1352221-13-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,2,2,2 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1352221-13:
(9*1)+(8*3)+(7*5)+(6*2)+(5*2)+(4*2)+(3*1)+(2*1)+(1*3)=106
106 % 10 = 6
So 1352221-13-6 is a valid CAS Registry Number.

1352221-13-6Relevant articles and documents

3,4-DIALKYLBIPHENYLDICARBOXYLIC ACID COMPOUND, 3,4-DICARBOALKOXYBIPHENYL-3', 4'-DICARBOXYLIC ACID AND CORRESPONDING ACID ANHYDRIDES, AND PROCESSES FOR PRODUCING THESE COMPOUNDS

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Paragraph 0051; 0052, (2013/08/14)

The present invention relates to the 3,4-Dicarboalkoxybiphenyl-3′,4′-dicarboxylic acid (including the corresponding acid anhydride) represented by the general formula (1): wherein R11 and R12 each represents an alkyl group having 1 to 4 carbon atoms, and n represents the number of waters of hydration that is 0 or 1.

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