72720-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72720-25-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,2 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72720-25:
(7*7)+(6*2)+(5*7)+(4*2)+(3*0)+(2*2)+(1*5)=113
113 % 10 = 3
So 72720-25-3 is a valid CAS Registry Number.