685502-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685502-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,5,0 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 685502-22:
(8*6)+(7*8)+(6*5)+(5*5)+(4*0)+(3*2)+(2*2)+(1*2)=171
171 % 10 = 1
So 685502-22-1 is a valid CAS Registry Number.