Soda cans don't have the stoppers and are therefore not hermetically sealed, don't mess with DIY stuff like that - IM injections are sensitive regarding abscesses.
I have vials of 5-MeO-MiPT, 5-MeO-DMT, DMT, S-ketamine, R-ketamine, MXE, 3-MeO-PCP and 3-MeO-PCE. But I wouldn't dissolve 4-HO tryptamines like 4-HO-MET, I don't like the idea that it slowly turns into brown or black goo and I don't want to put stuff in my muscles that is half way there - for injection of those substances I would rather make a shot for immediate use. Even 4-AcO's seem kinda iffy but for not too long term storage they should be fine.
I agree avoid injecting 2C's, 2C-C did not feel right with me at all the only time I IM'ed it.