31002-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31002-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,0 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31002-22:
(7*3)+(6*1)+(5*0)+(4*0)+(3*2)+(2*2)+(1*2)=39
39 % 10 = 9
So 31002-22-9 is a valid CAS Registry Number.