28069-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28069-18-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,6 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28069-18:
(7*2)+(6*8)+(5*0)+(4*6)+(3*9)+(2*1)+(1*8)=123
123 % 10 = 3
So 28069-18-3 is a valid CAS Registry Number.