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4.4'-Dibrom-3'-fluorbiphenyl is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40641-66-5

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40641-66-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40641-66-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,6,4 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40641-66:
(7*4)+(6*0)+(5*6)+(4*4)+(3*1)+(2*6)+(1*6)=95
95 % 10 = 5
So 40641-66-5 is a valid CAS Registry Number.

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