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3-O-methyldopamine

Structure via PubChem · Public domain (PubChem)

EntityQ4634167· pop 13· linked from 370 articles

3-O-methyldopamine

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Also known as 3-methoxy-4-hydroxyphenethylamine, 3-MT, 4-(2-aminoethyl)-2-methoxy-phenol, 4-(2-azanylethyl)-2-methoxy-phenol, 4-(2-aminoethyl)-2-methoxyphenol, 4-(2-Amino-ethyl)-2-methoxy-phenol, 5-(2-Aminoethyl)guaiacol

3-Methoxytyramine (3-MT), also known as 3-methoxy-4-hydroxyphenethylamine, is a human trace amine and the major metabolite of the monoamine neurotransmitter dopamine. It is formed by the introduction of a methyl group to dopamine by the enzyme catechol-O-methyltransferase (COMT). 3-MT can be further metabolized by the enzyme monoamine oxidase (MAO) to form homovanillic acid (HVA), which is then typically excreted in the urine.

Chemical data

Formula
C9H13NO2
Molecular weight
167.2 g/mol
IUPAC name
4-(2-aminoethyl)-2-methoxyphenol
SMILES
COC1=C(C=CC(=C1)CCN)O
InChIKey
DIVQKHQLANKJQO-UHFFFAOYSA-N
XLogP
0.2
Polar surface area
55.5 Ų
H-bond donors
2
H-bond acceptors
3
Formal charge
0

via PubChem

Drug data · ChEMBL

Molecule type
Small molecule

via ChEMBL · EBI

Wikidata facts

Mass
167.094629
Show 4 more facts
found in taxon
Lyallia kerguelensis
chemical formula
C₉H₁₃NO₂
canonical SMILES
COC1=C(C=CC(=C1)CCN)O
Commons category
3-Methoxytyramine
Sources (2)

via Wikidata · CC0

~1 min read

Encyclopedic overview

4 sections
Contents
  • Occurrence
  • Biological activity
  • See also
  • References

3-Methoxytyramine (3-MT), also known as 3-methoxy-4-hydroxyphenethylamine, is a human trace amine and the major metabolite of the monoamine neurotransmitter dopamine. It is formed by the introduction of a methyl group to dopamine by the enzyme catechol-O-methyltransferase (COMT). 3-MT can be further metabolized by the enzyme monoamine oxidase (MAO) to form homovanillic acid (HVA), which is then typically excreted in the urine.

== Occurrence == 3-Methoxytyramine occurs naturally in the prickly pear cactus (genus Opuntia), and is in general widespread throughout the Cactaceae. It has also been found in crown gall tumors on Nicotiana sp.

Excerpted from Wikipedia’s “3-O-methyldopamine” article, available under the CC BY-SA 4.0 licence.