911228-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 911228-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,1,2,2 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 911228-28:
(8*9)+(7*1)+(6*1)+(5*2)+(4*2)+(3*8)+(2*2)+(1*8)=139
139 % 10 = 9
So 911228-28-9 is a valid CAS Registry Number.