75111-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75111-28-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,1 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 75111-28:
(7*7)+(6*5)+(5*1)+(4*1)+(3*1)+(2*2)+(1*8)=103
103 % 10 = 3
So 75111-28-3 is a valid CAS Registry Number.