68109-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68109-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,1,0 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68109-79:
(7*6)+(6*8)+(5*1)+(4*0)+(3*9)+(2*7)+(1*9)=145
145 % 10 = 5
So 68109-79-5 is a valid CAS Registry Number.