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664982-77-8

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664982-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 664982-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,4,9,8 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 664982-77:
(8*6)+(7*6)+(6*4)+(5*9)+(4*8)+(3*2)+(2*7)+(1*7)=218
218 % 10 = 8
So 664982-77-8 is a valid CAS Registry Number.

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