721-62-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 721-62-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 721-62:
(5*7)+(4*2)+(3*1)+(2*6)+(1*2)=60
60 % 10 = 0
So 721-62-0 is a valid CAS Registry Number.