| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2009-04-06 16:20:15 UTC |
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| Update Date | 2023-02-21 17:17:42 UTC |
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| HMDB ID | HMDB0012162 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 4-Methoxytyramine |
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| Description | 4-Methoxytyramine is a catecholamine derivative. Catecholamines are important components of the central nervous system. A number of diseases are characterized by abnormal levels of catecholamines. For example, patients with Parkinson's disease have lower levels of dopamine than normal. L-3,4-Dihydroxyphennylalanune (L-Dopa), a catechol a-amino acid, is widely used in the treatment of Parkinson's disease. When L-Dopa is given orally to patients, the most prominent metabolite is 3-methoxy-4-hydroxyphenylalanine. However, a part of L-Dopa is methylated to 3-hydroxy-4-methylphenylalanine and to 3-hydroxy-4-methoxyphenethylamine. It has been reported that 4-O-methylation of catecholamines is implicated in some neuropsychiatric disorders and thus 3-hydroxy-4-methoxyphenethylamine appears to be the endogenous "toxin" in Parkinson's disease. Consequently, the determination of plasma levels of 3-hydroxy-4-methoxyphenethylamine is important following oral L-Dopa therapy (PMID: 6518609 ). |
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| Structure | InChI=1S/C9H13NO2/c1-12-9-3-2-7(4-5-10)6-8(9)11/h2-3,6,11H,4-5,10H2,1H3 |
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| Synonyms | | Value | Source |
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| 3-Hydroxy-4-methoxyphenethylamine | MeSH | | 3-Hydroxy-4-methoxyphenethylamine hydrochloride | MeSH | | 3-Hydroxy-4-methoxy-benzeneethanamine | HMDB | | 4-(2-Aminoethyl)guaiacol hydrochloride | HMDB | | 4-Methoxy-3-hydroxyphenethylamine hydrochloride | HMDB | | 4-O-Methyldopamine | HMDB | | 5-(2-Aminoethyl)-2-methoxyphenol | HMDB | | 5-Hydroxy-4-methoxy-benzeneethanamine | HMDB | | Lopac-H-3132 | HMDB |
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| Chemical Formula | C9H13NO2 |
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| Average Molecular Weight | 167.205 |
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| Monoisotopic Molecular Weight | 167.094628665 |
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| IUPAC Name | 5-(2-aminoethyl)-2-methoxyphenol |
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| Traditional Name | 5-(2-aminoethyl)-2-methoxyphenol |
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| CAS Registry Number | 3213-30-7 |
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| SMILES | COC1=C(O)C=C(CCN)C=C1 |
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| InChI Identifier | InChI=1S/C9H13NO2/c1-12-9-3-2-7(4-5-10)6-8(9)11/h2-3,6,11H,4-5,10H2,1H3 |
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| InChI Key | WJXQFVMTIGJBFX-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| 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. |
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| Kingdom | Organic compounds |
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| Super Class | Benzenoids |
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| Class | Phenols |
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| Sub Class | Methoxyphenols |
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| Direct Parent | Methoxyphenols |
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| Alternative Parents | |
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| Substituents | - Methoxyphenol
- Phenethylamine
- Anisole
- Phenoxy compound
- Phenol ether
- Methoxybenzene
- 2-arylethylamine
- Aralkylamine
- Alkyl aryl ether
- 1-hydroxy-2-unsubstituted benzenoid
- 1-hydroxy-4-unsubstituted benzenoid
- Monocyclic benzene moiety
- Ether
- Hydrocarbon derivative
- Primary amine
- Amine
- Organooxygen compound
- Organonitrogen compound
- Primary aliphatic amine
- Organic nitrogen compound
- Organopnictogen compound
- Organic oxygen compound
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Not Available | Not Available |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 1.9 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.2317 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 4.93 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 191.2 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 600.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 285.3 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 100.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 165.8 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 54.2 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 277.1 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 258.8 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 670.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 661.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 150.1 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 654.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 178.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 217.6 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 592.8 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 475.2 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 177.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 4-Methoxytyramine,1TMS,isomer #1 | COC1=CC=C(CCN)C=C1O[Si](C)(C)C | 1623.8 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,1TMS,isomer #2 | COC1=CC=C(CCN[Si](C)(C)C)C=C1O | 1732.4 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,2TMS,isomer #1 | COC1=CC=C(CCN[Si](C)(C)C)C=C1O[Si](C)(C)C | 1765.0 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,2TMS,isomer #1 | COC1=CC=C(CCN[Si](C)(C)C)C=C1O[Si](C)(C)C | 1844.2 | Standard non polar | 33892256 | | 4-Methoxytyramine,2TMS,isomer #1 | COC1=CC=C(CCN[Si](C)(C)C)C=C1O[Si](C)(C)C | 2002.2 | Standard polar | 33892256 | | 4-Methoxytyramine,2TMS,isomer #2 | COC1=CC=C(CCN([Si](C)(C)C)[Si](C)(C)C)C=C1O | 1961.8 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,2TMS,isomer #2 | COC1=CC=C(CCN([Si](C)(C)C)[Si](C)(C)C)C=C1O | 2027.8 | Standard non polar | 33892256 | | 4-Methoxytyramine,2TMS,isomer #2 | COC1=CC=C(CCN([Si](C)(C)C)[Si](C)(C)C)C=C1O | 2206.6 | Standard polar | 33892256 | | 4-Methoxytyramine,3TMS,isomer #1 | COC1=CC=C(CCN([Si](C)(C)C)[Si](C)(C)C)C=C1O[Si](C)(C)C | 1993.1 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,3TMS,isomer #1 | COC1=CC=C(CCN([Si](C)(C)C)[Si](C)(C)C)C=C1O[Si](C)(C)C | 2001.9 | Standard non polar | 33892256 | | 4-Methoxytyramine,3TMS,isomer #1 | COC1=CC=C(CCN([Si](C)(C)C)[Si](C)(C)C)C=C1O[Si](C)(C)C | 1981.7 | Standard polar | 33892256 | | 4-Methoxytyramine,1TBDMS,isomer #1 | COC1=CC=C(CCN)C=C1O[Si](C)(C)C(C)(C)C | 1875.4 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,1TBDMS,isomer #2 | COC1=CC=C(CCN[Si](C)(C)C(C)(C)C)C=C1O | 1989.4 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,2TBDMS,isomer #1 | COC1=CC=C(CCN[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2253.6 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,2TBDMS,isomer #1 | COC1=CC=C(CCN[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2285.9 | Standard non polar | 33892256 | | 4-Methoxytyramine,2TBDMS,isomer #1 | COC1=CC=C(CCN[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2260.2 | Standard polar | 33892256 | | 4-Methoxytyramine,2TBDMS,isomer #2 | COC1=CC=C(CCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1O | 2389.6 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,2TBDMS,isomer #2 | COC1=CC=C(CCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1O | 2422.4 | Standard non polar | 33892256 | | 4-Methoxytyramine,2TBDMS,isomer #2 | COC1=CC=C(CCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1O | 2348.6 | Standard polar | 33892256 | | 4-Methoxytyramine,3TBDMS,isomer #1 | COC1=CC=C(CCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2673.6 | Semi standard non polar | 33892256 | | 4-Methoxytyramine,3TBDMS,isomer #1 | COC1=CC=C(CCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2590.4 | Standard non polar | 33892256 | | 4-Methoxytyramine,3TBDMS,isomer #1 | COC1=CC=C(CCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2330.3 | Standard polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - 4-Methoxytyramine GC-MS (Non-derivatized) - 70eV, Positive | splash10-001i-6900000000-04f173662830730ff7b7 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4-Methoxytyramine GC-MS (1 TMS) - 70eV, Positive | splash10-00di-9830000000-566fa08a0eace6a43306 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4-Methoxytyramine GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 10V, Positive-QTOF | splash10-0gb9-0900000000-cb0f2ccb662476519dde | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 20V, Positive-QTOF | splash10-0uxr-0900000000-249e196fc14d685f1468 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 40V, Positive-QTOF | splash10-0uy0-9600000000-7665f4c41242de21beee | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 10V, Negative-QTOF | splash10-014i-0900000000-6a246c6614040c50b45f | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 20V, Negative-QTOF | splash10-014i-0900000000-960e238c3ffc12d3e76f | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 40V, Negative-QTOF | splash10-006x-6900000000-1863ab44a6327bc1600e | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 10V, Negative-QTOF | splash10-014i-0900000000-104aad9eca02be4778f8 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 20V, Negative-QTOF | splash10-014i-0900000000-bf79255353759d5bb555 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 40V, Negative-QTOF | splash10-03di-4900000000-4bc14a5573948760fa6c | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 10V, Positive-QTOF | splash10-0uk9-0900000000-ffaf9ba27484aab63eba | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 20V, Positive-QTOF | splash10-0udi-0900000000-d5dbb5d2c0ce720e3d23 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxytyramine 40V, Positive-QTOF | splash10-016r-9400000000-09c2c0d9b7b25467cf15 | 2021-09-23 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum |
IR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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