28193-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28193-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,9 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28193-65:
(7*2)+(6*8)+(5*1)+(4*9)+(3*3)+(2*6)+(1*5)=129
129 % 10 = 9
So 28193-65-9 is a valid CAS Registry Number.