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631920-77-9

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631920-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 631920-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,1,9,2 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 631920-77:
(8*6)+(7*3)+(6*1)+(5*9)+(4*2)+(3*0)+(2*7)+(1*7)=149
149 % 10 = 9
So 631920-77-9 is a valid CAS Registry Number.

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