BA and BB question


ALright, this may sound like a really stupid question and i have been a part of these forums for a while now. I am currently looking into homebrewing my own tren. I am in the learning process....ive searched through TONS of forums and i appoligize for asking this, but what exactly does BA and BB stand for? Ive seen they are most used in %'s. Ive searched around before posting this thread, so please dont drop the whole..."dude do your research" thing, because Ive been looking. Thanks guys.
BB is benzyl benzoate and BA is benzyl alcohol.

BA is an antimicrobial and is used at low %'s (2% is common) to keep bacteria at bay.

BB is used primarily as a solvent and helps the hormone stay in solution with the oil. Usually used at around 20%.