721448-75-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 721448-75-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,4,4 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 721448-75:
(8*7)+(7*2)+(6*1)+(5*4)+(4*4)+(3*8)+(2*7)+(1*5)=155
155 % 10 = 5
So 721448-75-5 is a valid CAS Registry Number.