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4,4'-dibromo-3,3'5,5'-tetraisopropylbiphenyl is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

856197-55-2

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856197-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 856197-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,1,9 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 856197-55:
(8*8)+(7*5)+(6*6)+(5*1)+(4*9)+(3*7)+(2*5)+(1*5)=212
212 % 10 = 2
So 856197-55-2 is a valid CAS Registry Number.

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