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31639-02-8

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31639-02-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31639-02-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,3 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31639-02:
(7*3)+(6*1)+(5*6)+(4*3)+(3*9)+(2*0)+(1*2)=98
98 % 10 = 8
So 31639-02-8 is a valid CAS Registry Number.

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