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4,4'-Difluoro-biphenyl-3,3'-dicarboxylic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

27830-01-9

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27830-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27830-01-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,8,3 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 27830-01:
(7*2)+(6*7)+(5*8)+(4*3)+(3*0)+(2*0)+(1*1)=109
109 % 10 = 9
So 27830-01-9 is a valid CAS Registry Number.

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