72424-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72424-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,4,2 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72424-87:
(7*7)+(6*2)+(5*4)+(4*2)+(3*4)+(2*8)+(1*7)=124
124 % 10 = 4
So 72424-87-4 is a valid CAS Registry Number.