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667877-80-7

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667877-80-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 667877-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,8,7 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 667877-80:
(8*6)+(7*6)+(6*7)+(5*8)+(4*7)+(3*7)+(2*8)+(1*0)=237
237 % 10 = 7
So 667877-80-7 is a valid CAS Registry Number.

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