I Need Defy Extreme Stain

I am looking for a place, possibly online, to buy Defy extreme stain from. I have heard that Defy extreme stain is probably the best kind of clear stain that I can get and I want to offer my customers the very best that is possible. I have had a different clear stain for a while and it does not seem to work very well. I need to be able to buy it in bulk and a good price would be the very best. If you know of any place that you think it would be good to buy this from please let me know.