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42612-21-5

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42612-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42612-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,6,1 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 42612-21:
(7*4)+(6*2)+(5*6)+(4*1)+(3*2)+(2*2)+(1*1)=85
85 % 10 = 5
So 42612-21-5 is a valid CAS Registry Number.

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