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166982-20-3

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166982-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 166982-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,9,8 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 166982-20:
(8*1)+(7*6)+(6*6)+(5*9)+(4*8)+(3*2)+(2*2)+(1*0)=173
173 % 10 = 3
So 166982-20-3 is a valid CAS Registry Number.

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