186518-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186518-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,5,1 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 186518-18:
(8*1)+(7*8)+(6*6)+(5*5)+(4*1)+(3*8)+(2*1)+(1*8)=163
163 % 10 = 3
So 186518-18-3 is a valid CAS Registry Number.