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20331-22-0

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20331-22-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20331-22-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,3 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20331-22:
(7*2)+(6*0)+(5*3)+(4*3)+(3*1)+(2*2)+(1*2)=50
50 % 10 = 0
So 20331-22-0 is a valid CAS Registry Number.

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