89408-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89408-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,0 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89408-89:
(7*8)+(6*9)+(5*4)+(4*0)+(3*8)+(2*8)+(1*9)=179
179 % 10 = 9
So 89408-89-9 is a valid CAS Registry Number.