| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2012-04-03 14:10:30 UTC |
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| Update Date | 2023-02-21 17:18:00 UTC |
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| HMDB ID | HMDB0013676 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 2,6-Dihydroxybenzoic acid |
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| Description | 2,6-Dihydroxybenzoic acid, also known as 6-hydroxysalicylic acid or gamma-resorcylic acid, belongs to the class of organic compounds known as salicylic acids. These are ortho-hydroxylated benzoic acids. 2,6-Dihydroxybenzoic acid is found, on average, in the highest concentration within beer and olives (Olea europaea). 2,6-Dihydroxybenzoic acid has also been detected, but not quantified in, strawberries (Fragaria X ananassa). This could make 2,6-dihydroxybenzoic acid a potential biomarker for the consumption of these foods. 2,6-Dihydroxybenzoic acid is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review a significant number of articles have been published on 2,6-Dihydroxybenzoic acid. |
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| Structure | InChI=1S/C7H6O4/c8-4-2-1-3-5(9)6(4)7(10)11/h1-3,8-9H,(H,10,11) |
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| Synonyms | | Value | Source |
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| 6-Hydroxysalicylic acid | ChEBI | | gamma-Resorcylic acid | ChEBI | | 6-Hydroxysalicylate | Generator | | g-Resorcylate | Generator | | g-Resorcylic acid | Generator | | gamma-Resorcylate | Generator | | Γ-resorcylate | Generator | | Γ-resorcylic acid | Generator | | 2,6-Dihydroxybenzoate | Generator | | 2,6-Dihydroxy-benzoic acid | HMDB | | 2,6-Dihydroxybenzoic acid (acd/name 4.0) | HMDB | | 2,6-Resorcylic acid | HMDB | | 2-Carboxyresorcinol | HMDB | | Benzoate | HMDB | | Benzoic acid | HMDB |
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| Chemical Formula | C7H6O4 |
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| Average Molecular Weight | 154.121 |
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| Monoisotopic Molecular Weight | 154.026608673 |
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| IUPAC Name | 2,6-dihydroxybenzoic acid |
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| Traditional Name | 2,6-dihydroxybenzoic acid |
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| CAS Registry Number | 303-07-1 |
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| SMILES | OC(=O)C1=C(O)C=CC=C1O |
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| InChI Identifier | InChI=1S/C7H6O4/c8-4-2-1-3-5(9)6(4)7(10)11/h1-3,8-9H,(H,10,11) |
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| InChI Key | AKEUNCKRJATALU-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as salicylic acids. These are ortho-hydroxylated benzoic acids. |
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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 | Salicylic acids |
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| Alternative Parents | |
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| Substituents | - Salicylic acid
- Benzoic acid
- Benzoyl
- Resorcinol
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Vinylogous acid
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Organic oxygen compound
- Organic oxide
- Organooxygen compound
- Hydrocarbon derivative
- 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 | Solid |
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| Experimental Molecular Properties | |
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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. | 2.95 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 10.1043 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.92 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 70.7 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1184.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 330.4 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 90.1 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 198.8 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 115.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 394.6 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 | 428.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 128.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 694.5 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 311.7 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 | 987.7 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 235.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 325.9 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 641.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 212.5 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 | 291.0 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 2,6-Dihydroxybenzoic acid,1TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=C(O)C=CC=C1O | 1550.6 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,1TMS,isomer #2 | C[Si](C)(C)OC1=CC=CC(O)=C1C(=O)O | 1603.2 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,2TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=C(O)C=CC=C1O[Si](C)(C)C | 1631.6 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,2TMS,isomer #2 | C[Si](C)(C)OC1=CC=CC(O[Si](C)(C)C)=C1C(=O)O | 1648.9 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,3TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=C(O[Si](C)(C)C)C=CC=C1O[Si](C)(C)C | 1762.7 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=C(O)C=CC=C1O | 1793.6 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC1=CC=CC(O)=C1C(=O)O | 1872.2 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=C(O)C=CC=C1O[Si](C)(C)C(C)(C)C | 2105.2 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC1=CC=CC(O[Si](C)(C)C(C)(C)C)=C1C(=O)O | 2181.7 | Semi standard non polar | 33892256 | | 2,6-Dihydroxybenzoic acid,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=C(O[Si](C)(C)C(C)(C)C)C=CC=C1O[Si](C)(C)C(C)(C)C | 2411.4 | 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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| Predicted GC-MS | Predicted GC-MS Spectrum - 2,6-Dihydroxybenzoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0w2i-4900000000-e371483679ffb975b0b7 | 2017-07-27 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2,6-Dihydroxybenzoic acid GC-MS (3 TMS) - 70eV, Positive | splash10-05gi-5092000000-75920741b3da9d472393 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2,6-Dihydroxybenzoic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2,6-Dihydroxybenzoic 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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| Experimental LC-MS/MS | LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 10V, Negative-QTOF | splash10-0zfr-0900000000-047fb76c7edd9d8a1a11 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 20V, Negative-QTOF | splash10-0aor-9800000000-bd52d2bc7f788640b45e | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 40V, Negative-QTOF | splash10-0006-9000000000-cdef27f177ed57f154f5 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 10V, Positive-QTOF | splash10-0a4r-0900000000-d899ed75ac04fcbce213 | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 20V, Positive-QTOF | splash10-000i-0900000000-61b442ba35921bf15903 | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 40V, Positive-QTOF | splash10-00kr-9700000000-af21042a1145ed08d24f | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 10V, Negative-QTOF | splash10-0pb9-0900000000-b2d93bd5c6cc2201063c | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 20V, Negative-QTOF | splash10-0a4i-0900000000-b40aa1f15c5c8ca99961 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 40V, Negative-QTOF | splash10-0a4i-7900000000-d0ea5ade866525499246 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 10V, Positive-QTOF | splash10-000i-0900000000-1d3dc5a6ec26910a12df | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 20V, Positive-QTOF | splash10-000i-2900000000-2405474149bdbe719ff7 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 40V, Positive-QTOF | splash10-0pvr-9500000000-3b04c7ddb3ecbcc8f3af | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 10V, Negative-QTOF | splash10-0a4r-0900000000-c5748c55776248a64a56 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 20V, Negative-QTOF | splash10-0a4i-3900000000-0d33dcb468f21e33c8b6 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2,6-Dihydroxybenzoic acid 40V, Negative-QTOF | splash10-014i-9100000000-2081dc4c4961d29b4fff | 2021-09-24 | 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) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-29 | 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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