Colour is already fairly accessible. I tried sending you a private message but you have your account security settings ratcheted way up evidently…
There's also 'Comet', aka 4-AcO-MET (get it? aka: 'Azomet', aka: 'Metacetin'), and that's a prodrug to Colour (4-HO-MET, aka: 'Metocin') and the end result is damn near the same thing. Either way, yes, I very much

this particular substance, good choice. Another worthwhile and similar compound is: 4-HO-MiPT, aka: 'Miprocin'. Btw, I like your username; made me lol
Actually I believe it does have affinity for the serotonin subtypes 5-HT2A and 5-HT2C.
Check out the pharmacodynamics listed on Wikipedia. However, I will agree with you that it is not structurally similar to tryptamines, which feature an indole scaffold + an ethylamine side arm. My first impression is that it looks like an anticholinergic drug similar to the arylcyclohexylamines, but w/two phenyls. Primarily it affects histamine, but secondarily it affects serotonin, whilst weakly affecting dopamine and norepinephrine. And sure enough, it's anticholinergic, too. What a weird compound. Thanks for pointing it out,
@The Holy Quadruplty
Darrel Lemaire sure made the
Tweetio series sound fun on Hamilton's Pharmacopeia… Also, despite the purported cardio problems that can develop, I would like to dabble some with
4-methylaminorex (aka:
4-MAR,
4-MAX, Euphoria, U4Euh (I'm cringing just writing that), &c.)… and yes, I know there are analogs on the RC market, but it's not the same. Also, if you research it, you'll find that the trans enantiomer,
trans-4-methylaminorex, is oddly and specifically not scheduled, only
cis-4-methylaminorex. Supposedly the feds thought the
trans enantiomer was inactive, but it turns out it's more active than the
cis enantiomer.
Here's more on the subject archived on the Erowid from Rhodium's old site.
I wish someone would whip up a large RC batch of the
trans enantiomer via—if memory serves—potassium cyanate and phenylpropanolamine.HCl (aka: norephedrine hydrochloride). Much safer than making the
cis enantiomer from cyanogen bromide which is both deadly poisonous
and volatile to boot. No thank you. Blast shield chemistry is pretty hardcore, all things considered. All this was figured out on the Hive circa 2003. Then there's a 2004 federal case in the southern district of Florida,
United States of America v William Hahne worth checking out. It established that the 1985 Analog Act didn't apply to
trans-4-MAR due to the fact that enantiomers ≠ isomer analogs. Bill still got 48 months for the
cis portion the DEA busted him with, and later, after his release, he was arrested again for mailing NBOMe psychedelics to a few of his inmate homies still in the joint. Oops. Bill has good ideas, but poor execution it seems.
Too bad 4-MAR purportedly causes COPD and other cardiotoxic shenanigans.
No bueno.
EDIT: Also, I understand
3,4-methylenedioxy-aminorex is active and excellent… there's also a
2C-B-Aminorex that I'm curious about.