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57812-91-6

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57812-91-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57812-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,1 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57812-91:
(7*5)+(6*7)+(5*8)+(4*1)+(3*2)+(2*9)+(1*1)=146
146 % 10 = 6
So 57812-91-6 is a valid CAS Registry Number.

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