| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2013-04-09 21:19:03 UTC |
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| Update Date | 2023-02-21 17:29:40 UTC |
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| HMDB ID | HMDB0060003 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Isovanillic acid |
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| Description | Isovanillic acid, also known as acide isovanillique or 3-hydroxy-p-anisate, belongs to the class of organic compounds known as p-methoxybenzoic acids and derivatives. These are benzoic acids in which the hydrogen atom at position 4 of the benzene ring is replaced by a methoxy group. Isovanillic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). It is a selective inhibitor of aldehyde oxidase. Isovanillic acid is a metabolite of isovanillin. Isovanillin is a phenolic aldehyde, an organic compound and isomer of vanillin. It is not a substrate of that enzyme, and is metabolized by aldehyde dehydrogenase into isovanillic acid. |
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| Structure | InChI=1S/C8H8O4/c1-12-7-3-2-5(8(10)11)4-6(7)9/h2-4,9H,1H3,(H,10,11) |
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| Synonyms | | Value | Source |
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| 3-Hydroxy-p-anisic acid | ChEBI | | 3-Hydroxyanisic acid | ChEBI | | Acide isovanillique | ChEBI | | 3-Hydroxy-p-anisate | Generator | | 3-Hydroxyanisate | Generator | | Isovanillate | Generator | | 3-Hydroxy-4-methoxybenzoate | HMDB | | Isovanillic acid | ChEBI | | 3-Hydroxy-4-methoxybenzoic acid | HMDB |
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| Chemical Formula | C8H8O4 |
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| Average Molecular Weight | 168.1467 |
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| Monoisotopic Molecular Weight | 168.042258744 |
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| IUPAC Name | 3-hydroxy-4-methoxybenzoic acid |
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| Traditional Name | isovanillic acid |
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| CAS Registry Number | Not Available |
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| SMILES | COC1=CC=C(C=C1O)C(O)=O |
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| InChI Identifier | InChI=1S/C8H8O4/c1-12-7-3-2-5(8(10)11)4-6(7)9/h2-4,9H,1H3,(H,10,11) |
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| InChI Key | LBKFGYZQBSGRHY-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as p-methoxybenzoic acids and derivatives. These are benzoic acids in which the hydrogen atom at position 4 of the benzene ring is replaced by a methoxy group. |
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| Kingdom | Organic compounds |
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| Super Class | Benzenoids |
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| Class | Benzene and substituted derivatives |
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| Sub Class | Benzoic acids and derivatives |
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| Direct Parent | P-methoxybenzoic acids and derivatives |
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| Alternative Parents | |
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| Substituents | - P-methoxybenzoic acid or derivatives
- Hydroxybenzoic acid
- Methoxyphenol
- Benzoic acid
- Phenoxy compound
- Benzoyl
- Phenol ether
- Methoxybenzene
- Anisole
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Alkyl aryl ether
- 1-hydroxy-4-unsubstituted benzenoid
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Ether
- Carboxylic acid derivative
- Organic oxygen compound
- Organooxygen compound
- Hydrocarbon derivative
- Organic oxide
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Not Available |
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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. | 3.06 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.9791 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.12 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1225.9 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 313.7 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 100.7 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 182.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 80.2 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 364.8 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 | 359.9 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 110.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 758.1 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 299.6 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 | 1001.4 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 237.2 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 318.5 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 492.9 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 234.3 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 | 181.9 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Isovanillic acid,1TMS,isomer #1 | COC1=CC=C(C(=O)O)C=C1O[Si](C)(C)C | 1740.2 | Semi standard non polar | 33892256 | | Isovanillic acid,1TMS,isomer #2 | COC1=CC=C(C(=O)O[Si](C)(C)C)C=C1O | 1706.0 | Semi standard non polar | 33892256 | | Isovanillic acid,2TMS,isomer #1 | COC1=CC=C(C(=O)O[Si](C)(C)C)C=C1O[Si](C)(C)C | 1763.5 | Semi standard non polar | 33892256 | | Isovanillic acid,1TBDMS,isomer #1 | COC1=CC=C(C(=O)O)C=C1O[Si](C)(C)C(C)(C)C | 1993.5 | Semi standard non polar | 33892256 | | Isovanillic acid,1TBDMS,isomer #2 | COC1=CC=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C1O | 1964.5 | Semi standard non polar | 33892256 | | Isovanillic acid,2TBDMS,isomer #1 | COC1=CC=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C1O[Si](C)(C)C(C)(C)C | 2226.8 | Semi standard non polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Experimental GC-MS | GC-MS Spectrum - Isovanillic acid EI-B (Non-derivatized) | splash10-0gb9-0900000000-660260d6741ecd0596f0 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Isovanillic acid EI-B (Non-derivatized) | splash10-0gb9-0900000000-660260d6741ecd0596f0 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Isovanillic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0v4i-1900000000-c5f8b901bedc7425298b | 2017-07-27 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Isovanillic acid GC-MS (2 TMS) - 70eV, Positive | splash10-00dj-7390000000-70ce0f538d85bc14166b | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Isovanillic acid 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 - Isovanillic acid 10V, Positive-QTOF | splash10-014i-0900000000-74d5acf94885979a45bc | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 20V, Positive-QTOF | splash10-014i-0900000000-1f440ab003326771b38c | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 40V, Positive-QTOF | splash10-0pba-9700000000-61538cb4d5e11d9a644d | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 10V, Negative-QTOF | splash10-014i-0900000000-f99b0820273ae5f60860 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 20V, Negative-QTOF | splash10-0600-0900000000-3aec4e7b83510da5f7dc | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 40V, Negative-QTOF | splash10-0a4i-5900000000-183253eef4e32ef30a77 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 10V, Positive-QTOF | splash10-01di-0900000000-3cc71901cc9d06891629 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 20V, Positive-QTOF | splash10-0uk9-2900000000-e68face2401bfccd751b | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 40V, Positive-QTOF | splash10-0f79-9000000000-8336370be2810955110d | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 10V, Negative-QTOF | splash10-00xr-0900000000-5caf52d47f9861640c51 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 20V, Negative-QTOF | splash10-0a4i-1900000000-b1375f695ecb3e248e98 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isovanillic acid 40V, Negative-QTOF | splash10-0a4l-9300000000-efc8e562978bca30917e | 2021-10-12 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-24 | 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]-) | 2023-02-04 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-04 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-04 | FELIX lab | View Spectrum |
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