79209-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79209-09-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,2,0 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79209-09:
(7*7)+(6*9)+(5*2)+(4*0)+(3*9)+(2*0)+(1*9)=149
149 % 10 = 9
So 79209-09-9 is a valid CAS Registry Number.