685106-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685106-55-2 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 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 685106-55:
(8*6)+(7*8)+(6*5)+(5*1)+(4*0)+(3*6)+(2*5)+(1*5)=172
172 % 10 = 2
So 685106-55-2 is a valid CAS Registry Number.