685121-13-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685121-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,1,2 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 685121-13:
(8*6)+(7*8)+(6*5)+(5*1)+(4*2)+(3*1)+(2*1)+(1*3)=155
155 % 10 = 5
So 685121-13-5 is a valid CAS Registry Number.