680198-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 680198-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,0,1,9 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 680198-26:
(8*6)+(7*8)+(6*0)+(5*1)+(4*9)+(3*8)+(2*2)+(1*6)=179
179 % 10 = 9
So 680198-26-9 is a valid CAS Registry Number.