Np mrd loader

You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on NP-MRD.
Record Information
Created at2005-11-16 15:48:42 UTC
Updated at2021-10-07 20:42:06 UTC
NP-MRD IDNP0001274
Secondary Accession NumbersNone
Natural Product Identification
Common Name3-Methoxytyramine
Description3-Methoxytyramine, also known as 4-(2-amino-Ethyl)-2-methoxy-phenol or 3-O-Methyldopamine, is classified as a member of the Methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. 3-Methoxytyramine is considered to be slightly soluble (in water) and acidic. 3-Methoxytyramine can be found primarily in human brain and most tissues tissues; and in blood, cerebrospinal fluid (csf) or urine. Within a cell, 3-methoxytyramine is primarily located in the cytoplasm
3-Methoxy-4-hydroxyphenylethyl amineHMDB
3-Methoxytyramine hydrochlorideHMDB
Chemical FormulaC9H13NO2
Average Mass167.2050 Da
Monoisotopic Mass167.09463 Da
IUPAC Name4-(2-aminoethyl)-2-methoxyphenol
Traditional Namemethoxytyramine
CAS Registry Number554-52-9
InChI Identifier
Spectrum TypeDescriptionDepositor IDDeposition DateView
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Wishart Lab2021-06-20View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Wishart Lab2021-06-20View Spectrum
Species of Origin
Species NameSourceReference
Acacia rigidula Benth.KNApSAcK Database
Anas platyrhynchosFooDB
Anser anserFooDB
Austrocylindropuntia cylindricaLOTUS Database
Backebergia militarisLOTUS Database
Bison bisonFooDB
Bos taurusFooDB
Bos taurus X Bison bisonFooDB
Bubalus bubalisFooDB
Capra aegagrus hircusFooDB
Cervus canadensisFooDB
Cylindropuntia imbricataLOTUS Database
Dromaius novaehollandiaeFooDB
Echinopsis spachianaLOTUS Database
Equus caballusFooDB
Gallus gallusFooDB
Lagopus mutaFooDB
Lepus timidusFooDB
Lyallia kerguelensisLOTUS Database
Melanitta fuscaFooDB
Meleagris gallopavoFooDB
Mus musculusLOTUS Database
Numida meleagrisFooDB
Ovis ariesFooDB
Phasianus colchicusFooDB
Senegalia berlandieriLOTUS Database
Struthio camelusFooDB
Sus scrofaFooDB
Sus scrofa domesticaFooDB
Vachellia rigidulaLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety.
KingdomOrganic compounds
Super ClassBenzenoids
Sub ClassMethoxyphenols
Direct ParentMethoxyphenols
Alternative Parents
  • Methoxyphenol
  • Phenethylamine
  • Anisole
  • Phenoxy compound
  • Phenol ether
  • Methoxybenzene
  • 2-arylethylamine
  • Aralkylamine
  • Alkyl aryl ether
  • 1-hydroxy-2-unsubstituted benzenoid
  • Monocyclic benzene moiety
  • Ether
  • Primary amine
  • Amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxygen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-0.08Sangster, J. (1993). LOGKOW- a Databank of Evaluated Octanol-Water Partition Coefficients. Sangster Research Laboratories, Montreal.
Predicted Properties
Water Solubility5.36 g/LALOGPS
pKa (Strongest Acidic)10.39ChemAxon
pKa (Strongest Basic)9.64ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area55.48 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity47.73 m³·mol⁻¹ChemAxon
Polarizability18.21 ųChemAxon
Number of Rings1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB021876
KNApSAcK IDC00042132
Chemspider ID1606
KEGG Compound IDC05587
BioCyc IDNot Available
BiGG ID46076
Wikipedia Link3-Methoxytyramine
PubChem Compound1669
PDB IDNot Available
ChEBI ID742324
Good Scents IDNot Available
General References
  1. Leysen JE, Wynants J, Eens A, Janssen PA: Ketanserin reduces a particular monoamine pool in peripheral tissues. Mol Pharmacol. 1989 Mar;35(3):375-80. [PubMed:2927387 ]
  2. Faraj BA, Lawson DH, Nixon DW, Murray DR, Camp VM, Ali FM, Black M, Stacciarini W, Tarcan Y: Melanoma detection by enzyme-radioimmunoassay of L-dopa, dopamine, and 3-O-methyldopamine in urine. Clin Chem. 1981 Jan;27(1):108-12. [PubMed:7004664 ]
  3. Muskiet FA, Thomasson CG, Gerding AM, Fremouw-Ottevangers DC, Nagel GT, Wolthers BG: Determination of catecholamines and their 3-O-methylated metabolites in urine by mass fragmentography with use of deuterated internal standards. Clin Chem. 1979 Mar;25(3):453-60. [PubMed:262188 ]
  4. Sparks DL, Hunsaker JC 3rd, Slevin JT: Postmortem accumulation of 3-methoxytyramine in the brain. N Engl J Med. 1984 Aug 23;311(8):540. [PubMed:6749220 ]
  5. Peterson ZD, Collins DC, Bowerbank CR, Lee ML, Graves SW: Determination of catecholamines and metanephrines in urine by capillary electrophoresis-electrospray ionization-time-of-flight mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Sep 5;776(2):221-9. [PubMed:12138004 ]
  6. Beck O, Faull KF: Extractive acylation and mass spectrometric assay of 3-methoxytyramine, normetanephrine, and metanephrine in cerebrospinal fluid. Anal Biochem. 1985 Sep;149(2):492-500. [PubMed:4073504 ]
  7. Goldstein DS, Eisenhofer G, Kopin IJ: Sources and significance of plasma levels of catechols and their metabolites in humans. J Pharmacol Exp Ther. 2003 Jun;305(3):800-11. Epub 2003 Mar 20. [PubMed:12649306 ]
  8. Oeltmann T, Carson R, Shannon JR, Ketch T, Robertson D: Assessment of O-methylated catecholamine levels in plasma and urine for diagnosis of autonomic disorders. Auton Neurosci. 2004 Nov 30;116(1-2):1-10. [PubMed:15556832 ]
  9. Yui K, Ikemoto S, Goto K: Factors for susceptibility to episode recurrence in spontaneous recurrence of methamphetamine psychosis. Ann N Y Acad Sci. 2002 Jun;965:292-304. [PubMed:12105105 ]
  10. Uchikura K, Horikawa R, Tanimura T, Kabasawa Y: Determination of catecholamines by radioenzymatic assay using ion-pair liquid chromatography. J Chromatogr. 1981 Apr 10;223(1):41-50. [PubMed:7251775 ]
  11. Carlsson A, Lindqvist M, Kehr W: Postmortal accumulation of 3-methoxytyramine in brain. Naunyn Schmiedebergs Arch Pharmacol. 1974;284(4):365-72. [PubMed:4281061 ]
  12. Shoup RE, Kissinger PT: Determination of urinary normetanephrine, metanephrine, and 3-methoxytyramine by liquid chromatography, with amperometric detection. Clin Chem. 1977 Jul;23(7):1268-74. [PubMed:872373 ]
  13. Wester P, Puu G, Reiz S, Winblad B, Wester PO: Increased monoamine metabolite concentrations and cholinesterase activities in cerebrospinal fluid of patients with acute stroke. Acta Neurol Scand. 1987 Dec;76(6):473-9. [PubMed:3434205 ]
  14. Yui K, Goto K, Ikemoto S: The role of noradrenergic and dopaminergic hyperactivity in the development of spontaneous recurrence of methamphetamine psychosis and susceptibility to episode recurrence. Ann N Y Acad Sci. 2004 Oct;1025:296-306. [PubMed:15542730 ]
  15. Rajput AH, Fenton ME, Di Paolo T, Sitte H, Pifl C, Hornykiewicz O: Human brain dopamine metabolism in levodopa-induced dyskinesia and wearing-off. Parkinsonism Relat Disord. 2004 Jun;10(4):221-6. [PubMed:15120096 ]