86997-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 86997-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,9,9 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 86997-89:
(7*8)+(6*6)+(5*9)+(4*9)+(3*7)+(2*8)+(1*9)=219
219 % 10 = 9
So 86997-89-9 is a valid CAS Registry Number.