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Impurities and reference standards

3-Methoxytyramine

Also known as 4-(2-Aminoethyl)-2-methoxyphenol, 4-(2-Amino-ethyl)-2-methoxy-phenol, 3-O-methyldopamine

CAS 554-52-9Formula C9H13NO2Molar mass 167.21 g/molEC 611-267-3
GHS signal word: Warning. Pictograms: Harmful or irritant 24 suppliers listed
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3-Methoxytyramine chemical structure, C9H13NO2, CAS 554-52-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
554-52-9
Formula
C9H13NO2
Molar mass
167.21 g/mol
EC number
611-267-3
HS code
292229
Category
Impurities and reference standards

What is 3-Methoxytyramine?

Plain description, key identifiers and synonyms

3-methoxytyramine is a monomethoxybenzene that is dopamine in which the hydroxy group at position 3 is replaced by a methoxy group. It is a metabolite of the neurotransmitter dopamine and considered a potential biomarker of pheochromocytomas and paragangliomas. It has a role as a biomarker, a human urinary metabolite and a human blood serum metabolite. It is a monomethoxybenzene, a member of phenols, a phenylethylamine and a primary amino compound. It is functionally related to a dopamine. It is a conjugate base of a 3-methoxytyraminium.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-(2-aminoethyl)-2-methoxyphenol
CAS number
554-52-9 CAS number cross-checked
EC number
611-267-3
Molecular formula
C9H13NO2
UNII
JCH2767EDP
MDL number
MFCD00060621
InChIKey
DIVQKHQLANKJQO-UHFFFAOYSA-N
InChI
InChI=1S/C9H13NO2/c1-12-9-6-7(4-5-10)2-3-8(9)11/h2-3,6,11H,4-5,10H2,1H3
SMILES (canonical and isomeric)
COC1=C(C=CC(=C1)CCN)O

Synonyms

  • 4-(2-Aminoethyl)-2-methoxyphenol
  • 4-(2-Amino-ethyl)-2-methoxy-phenol
  • 3-O-methyldopamine
  • Methoxytyramine
  • 3-Methoxy-4-hydroxyphenethylamine
  • Phenol, 4-(2-aminoethyl)-2-methoxy-
  • Homovanillinamine
  • Homovanillylamine
  • 4-hydroxy-3-methoxyphenylethylamine
  • 3-Methoxy-p-tyramine
  • 2-(4-hydroxy-3-methoxyphenyl)ethylamine
  • 2-Methoxy-4-(2-aminoethyl)phenol
  • 4-Hydroxy-3-methoxy-2-phenethylamine
  • 4-Hydroxy-3-methoxy-beta-phenethylamine
  • Dopamine EP Impurity B
  • 3-Methoxy-4-hydroxyphenylethyl amine
  • 4-(2-aminoethyl)-2-methoxy-Phenol
  • Tyramine, 3-methoxy-
  • 4-hydroxy-3-methoxyphenethylamine
  • 5-(2-aminoethyl)guaiacol
  • 4-(2-Amino-ethyl)-2-methoxy-phenol CONTROLLED DRUG CLASS A SCHEDULE 1
  • 4-?(2-?Aminoethyl)?-?2-?methoxyphenol
  • 3-O-Methyl dopamine
  • 3-Methoxytyramine (Standard)
  • 4-(2-Aminoethyl)-2-methoxyphenol #
Show all 34 synonyms
  • Guaiacol, 4-(2-aminoethyl)-
  • Dopamine impurity b
  • 2-(4-hydroxy-3-methoxyphenyl)-ethylamine
  • 2-(4-hydroxy-3-methoxy-phenyl)-ethylamine
  • Hydroxy-3-methoxyphenethylamine, 4-
  • 3-Methoxytyramine Solution in Methanol, 100ug/mL
  • Dopamine hydrochloride impurity b
  • 0F899116-F44F-422B-B36A-7F12600FCCBD
  • 3-Methoxytyramine Solution in Acetonitrile/Methanol, 100ug/mL

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
167.21 g/molcalc.
Exact mass
167.0946 Dacalc.
LogP (octanol/water)
0.9calc.
Topological polar surface area
55.48 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.33calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H319Causes serious eye irritation.
Precautionary statements (4)
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P337 + P317If eye irritation persists: Get medical help.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

3-Methoxytyramine suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 24 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

24 suppliers in 6 countries

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3-Methoxytyramine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • biomarker
  • eukaryotic metabolite
  • human blood serum metabolite
  • human metabolite
  • human urinary metabolite
  • indicator
  • mammalian metabolite
  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 3-Methoxytyramine is traded under.

HS 2922.29Indicative HS code

Amino-naphthols and other amino-phenols, other than those containing more than one kind…

World exports in 2024
$467M
−15.3% vs 2023, imports $454M
2019 to 2024
Top exporters
  1. China63.1%
  2. India * partner reported15.5%
  3. Japan4.0%
Top importers
  1. India * partner reported25.8%
  2. United States14.4%
  3. South Korea7.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 3-Methoxytyramine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Methoxytyramine, based on the data on this page

What is 3-Methoxytyramine?

3-methoxytyramine is a monomethoxybenzene that is dopamine in which the hydroxy group at position 3 is replaced by a methoxy group. It is a metabolite of the neurotransmitter dopamine and considered a potential biomarker of pheochromocytomas and paragangliomas.

What is the CAS number of 3-Methoxytyramine?

The CAS registry number of 3-Methoxytyramine is 554-52-9.

What is the molecular formula and weight of 3-Methoxytyramine?

The molecular formula of 3-Methoxytyramine is C9H13NO2 and its molar mass is 167.21 g/mol.

What is 3-Methoxytyramine used for?

Known uses and roles of 3-Methoxytyramine include animal metabolite, biomarker, eukaryotic metabolite, human blood serum metabolite, human metabolite and 4 more.

Is 3-Methoxytyramine hazardous?

3-Methoxytyramine carries the GHS signal word "Warning". Main hazards: causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 3-Methoxytyramine?

3-Methoxytyramine is usually classified under HS code 292229 (Amino-naphthols and other amino-phenols, other than those containing more than one kind…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Methoxytyramine?

CompoundList lists 24 suppliers of 3-Methoxytyramine in China, United States, France, Czech Republic and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 3-Methoxytyramine in India?

1 supplier in India list 3-Methoxytyramine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 3-Methoxytyramine?

Suppliers quote 3-Methoxytyramine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 3-Methoxytyramine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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