533-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 533-55-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,3 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 533-55:
(5*5)+(4*3)+(3*3)+(2*5)+(1*5)=61
61 % 10 = 1
So 533-55-1 is a valid CAS Registry Number.