79902-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79902-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,0 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79902-89:
(7*7)+(6*9)+(5*9)+(4*0)+(3*2)+(2*8)+(1*9)=179
179 % 10 = 9
So 79902-89-9 is a valid CAS Registry Number.