685109-08-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685109-08-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,1,0 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 685109-08:
(8*6)+(7*8)+(6*5)+(5*1)+(4*0)+(3*9)+(2*0)+(1*8)=174
174 % 10 = 4
So 685109-08-4 is a valid CAS Registry Number.