726-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 726-03-4 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 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 726-03:
(5*7)+(4*2)+(3*6)+(2*0)+(1*3)=64
64 % 10 = 4
So 726-03-4 is a valid CAS Registry Number.