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31171-99-0

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31171-99-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31171-99-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,7 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 31171-99:
(7*3)+(6*1)+(5*1)+(4*7)+(3*1)+(2*9)+(1*9)=90
90 % 10 = 0
So 31171-99-0 is a valid CAS Registry Number.

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