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31165-80-7

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31165-80-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31165-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,6 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 31165-80:
(7*3)+(6*1)+(5*1)+(4*6)+(3*5)+(2*8)+(1*0)=87
87 % 10 = 7
So 31165-80-7 is a valid CAS Registry Number.

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