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191669-17-7

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191669-17-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191669-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,6,6 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 191669-17:
(8*1)+(7*9)+(6*1)+(5*6)+(4*6)+(3*9)+(2*1)+(1*7)=167
167 % 10 = 7
So 191669-17-7 is a valid CAS Registry Number.

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