5-Methoxytryptamine

5-Methoxytryptamine
Clinical data
Other names	5-MeO-T; 5-OMe-T; 5-MeOT; 5-MeO-TPA; 5-MT; MT; 5-Hydroxytryptamine methyl ether; Serotonin methyl ether; O-Methylserotonin; O-Methyl-5-HT; Mexamine; Meksamin; Mekasamin; PAL-234
Routes of; administration	Orally inactive
Drug class	Non-selective serotonin receptor agonist; Serotonin 5-HT2A receptor agonist; Serotonergic psychedelic; Hallucinogen
Pharmacokinetic data
Metabolism	MAO-ATooltip Monoamine oxidase A
Identifiers
	IUPAC name 2-(5-Methoxy-1H-indol-3-yl)ethanamine;
CAS Number	608-07-1 ;
PubChem CID	1833;
IUPHAR/BPS	107;
ChemSpider	1767 ;
UNII	3VMW6141KC;
KEGG	C05659 ;
ChEBI	CHEBI:2089 ;
ChEMBL	ChEMBL8165 ;
CompTox Dashboard (EPA)	DTXSID60209638 ;
ECHA InfoCard	100.009.231
Chemical and physical data
Formula	C11H14N2O
Molar mass	190.246 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES O(c1cc2c(cc1)[nH]cc2CCN)C;
	InChI InChI=1S/C11H14N2O/c1-14-9-2-3-11-10(6-9)8(4-5-12)7-13-11/h2-3,6-7,13H,4-5,12H2,1H3 ; Key:JTEJPPKMYBDEMY-UHFFFAOYSA-N ;
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5-Methoxytryptamine (5-MT, 5-MeO-T, or 5-OMe-T), also known as serotonin methyl ether or O-methylserotonin and as mexamine, is a tryptamine derivative closely related to the neurotransmitters serotonin and melatonin. It has been shown to occur naturally in the pineal gland of the brain. It is formed via O-methylation of serotonin or N-deacetylation of melatonin.

5-MT is a highly potent and non-selective serotonin receptor agonist and shows serotonergic psychedelic-like effects in animals. However, it is inactive in humans, at least orally, likely due to rapid metabolism by monoamine oxidase (MAO). The levels and effects of 5-MT are dramatically potentiated by monoamine oxidase inhibitors (MAOIs) in animals.