99969-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99969-78-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,6 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99969-78:
(7*9)+(6*9)+(5*9)+(4*6)+(3*9)+(2*7)+(1*8)=235
235 % 10 = 5
So 99969-78-5 is a valid CAS Registry Number.