I honestly don't know about 2C-B, but ether will surely help in crystallization. Do you at least know if you have the hydrobromide or hydrochloride? Hm - probably not..
(I just remember a guy who once told me he had bought 2C_B in a capsule, and he mentioned that it contained two small lines of a rust-colored, reddish-brown powder, which after ingesting one of them made him feel like a comic character and caused him to party on very excessively. So probably you should just evaporate the alcohol, do an acetone wash on the residue, dry it and then swallow it as is...)
indole_amine