79909-16-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79909-16-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,0 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 79909-16:
(7*7)+(6*9)+(5*9)+(4*0)+(3*9)+(2*1)+(1*6)=183
183 % 10 = 3
So 79909-16-3 is a valid CAS Registry Number.