73489-98-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73489-98-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,8 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 73489-98:
(7*7)+(6*3)+(5*4)+(4*8)+(3*9)+(2*9)+(1*8)=172
172 % 10 = 2
So 73489-98-2 is a valid CAS Registry Number.