685089-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685089-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,0,8 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 685089-20:
(8*6)+(7*8)+(6*5)+(5*0)+(4*8)+(3*9)+(2*2)+(1*0)=197
197 % 10 = 7
So 685089-20-7 is a valid CAS Registry Number.