11-08-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 11-08-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 1 and 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 11-08:
(4*1)+(3*1)+(2*0)+(1*8)=15
15 % 10 = 5
So 11-08-5 is a valid CAS Registry Number.