28166-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28166-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,6 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 28166-12:
(7*2)+(6*8)+(5*1)+(4*6)+(3*6)+(2*1)+(1*2)=113
113 % 10 = 3
So 28166-12-3 is a valid CAS Registry Number.