68512-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68512-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,5,1 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 68512-18:
(7*6)+(6*8)+(5*5)+(4*1)+(3*2)+(2*1)+(1*8)=135
135 % 10 = 5
So 68512-18-5 is a valid CAS Registry Number.