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207683-20-3

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207683-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207683-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,6,8 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 207683-20:
(8*2)+(7*0)+(6*7)+(5*6)+(4*8)+(3*3)+(2*2)+(1*0)=133
133 % 10 = 3
So 207683-20-3 is a valid CAS Registry Number.

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