The chemical taste is guaiacol, a solvent commonly used for injectable orals and things like test base and tren base. Some labs use it with DHB (1-test), since it's hard to get it to hold in solution using just BA and BB with a carrier oil.

I used this in my first cycle 15 years ago, and I'm on it now. I agree with one of the earlier posters. It gives a primo / EQ type of look, but with much better strength gains. I actually get more strength from DHB than I get from tren.