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159518-81-7

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159518-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159518-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,5,1 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 159518-81:
(8*1)+(7*5)+(6*9)+(5*5)+(4*1)+(3*8)+(2*8)+(1*1)=167
167 % 10 = 7
So 159518-81-7 is a valid CAS Registry Number.

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