83685-85-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83685-85-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,8 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83685-85:
(7*8)+(6*3)+(5*6)+(4*8)+(3*5)+(2*8)+(1*5)=172
172 % 10 = 2
So 83685-85-2 is a valid CAS Registry Number.