79866-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79866-88-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,6 and 6 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 79866-88:
(7*7)+(6*9)+(5*8)+(4*6)+(3*6)+(2*8)+(1*8)=209
209 % 10 = 9
So 79866-88-9 is a valid CAS Registry Number.