I work in the biology department at my university. We have a chemical stock room, and in the flamables room is a 55 gallon drum of 100% ETOH, which I believe is the same as or similar to isopropyl. If I were you, I would buy pure isopropyl. I know you can get it in 16oz bottles too. We have lots of those, try contacting your local U, they may not be able to give you any but would be able to put you in contact with a wholesaler who should.
