17228-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17228-11-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,2,2 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17228-11:
(7*1)+(6*7)+(5*2)+(4*2)+(3*8)+(2*1)+(1*1)=94
94 % 10 = 4
So 17228-11-4 is a valid CAS Registry Number.