72724-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72724-11-9 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 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72724-11:
(7*7)+(6*2)+(5*7)+(4*2)+(3*4)+(2*1)+(1*1)=119
119 % 10 = 9
So 72724-11-9 is a valid CAS Registry Number.