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1,1'-Biphenyl, 4,4'-dibromo-2-methoxy-2'-nitro- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

232940-83-9

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232940-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 232940-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,2,9,4 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 232940-83:
(8*2)+(7*3)+(6*2)+(5*9)+(4*4)+(3*0)+(2*8)+(1*3)=129
129 % 10 = 9
So 232940-83-9 is a valid CAS Registry Number.

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