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501680-77-9

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501680-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 501680-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,6,8 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 501680-77:
(8*5)+(7*0)+(6*1)+(5*6)+(4*8)+(3*0)+(2*7)+(1*7)=129
129 % 10 = 9
So 501680-77-9 is a valid CAS Registry Number.

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