89724-62-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89724-62-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,2 and 4 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89724-62:
(7*8)+(6*9)+(5*7)+(4*2)+(3*4)+(2*6)+(1*2)=179
179 % 10 = 9
So 89724-62-9 is a valid CAS Registry Number.