31331-00-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31331-00-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,3 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 31331-00:
(7*3)+(6*1)+(5*3)+(4*3)+(3*1)+(2*0)+(1*0)=57
57 % 10 = 7
So 31331-00-7 is a valid CAS Registry Number.