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5257-82-9

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5257-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5257-82-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,5 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5257-82:
(6*5)+(5*2)+(4*5)+(3*7)+(2*8)+(1*2)=99
99 % 10 = 9
So 5257-82-9 is a valid CAS Registry Number.

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