I agree. for cleaning, get the cheapest lacquer thinner at hardware store.
I use on that cost 3$ for 1 gallon.
Btw, never spray a paint with your airbrush before knowing how to clean it after. If your jar is dirty, just imagine how is your airbrush now.. you will need a lot of time to clean it (unless it's a cheap single action 10$ airbrush, then it's better just to put it in the garbage)