18331-13-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18331-13-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,3 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18331-13:
(7*1)+(6*8)+(5*3)+(4*3)+(3*1)+(2*1)+(1*3)=90
90 % 10 = 0
So 18331-13-0 is a valid CAS Registry Number.