333-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 333-91-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,3 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 333-91:
(5*3)+(4*3)+(3*3)+(2*9)+(1*1)=55
55 % 10 = 5
So 333-91-5 is a valid CAS Registry Number.