| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2005-11-16 15:48:42 UTC |
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| Update Date | 2023-02-21 17:14:48 UTC |
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| HMDB ID | HMDB0000409 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | (5R)-5-Hydroxyhexanoic acid |
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| Description | (5R)-5-Hydroxyhexanoic acid, also known as (5R)-5-hydroxycaproate or HMBA, belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. Based on a literature review very few articles have been published on (5R)-5-Hydroxyhexanoic acid. |
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| Structure | InChI=1S/C6H12O3/c1-5(7)3-2-4-6(8)9/h5,7H,2-4H2,1H3,(H,8,9)/t5-/m1/s1 |
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| Synonyms | | Value | Source |
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| (-)-5-Hydroxycaproic acid | ChEBI | | (-)-5-Hydroxyhexanoic acid | ChEBI | | (5R)-5-Hydroxycaproic acid | ChEBI | | (R)-(-)-5-Hydroxyhexanoic acid | ChEBI | | (-)-5-Hydroxycaproate | Generator | | (-)-5-Hydroxyhexanoate | Generator | | (5R)-5-Hydroxycaproate | Generator | | (R)-(-)-5-Hydroxyhexanoate | Generator | | (5R)-5-Hydroxyhexanoate | Generator | | (5R)-5-Hydroxy-hexanoate | HMDB | | (5R)-5-Hydroxy-hexanoic acid | HMDB | | HMBA | HMDB | | 5R-Hydroxy-hexanoate | HMDB |
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| Chemical Formula | C6H12O3 |
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| Average Molecular Weight | 132.1577 |
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| Monoisotopic Molecular Weight | 132.07864425 |
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| IUPAC Name | (5R)-5-hydroxyhexanoic acid |
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| Traditional Name | HMBA |
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| CAS Registry Number | 83972-61-6 |
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| SMILES | C[C@@H](O)CCCC(O)=O |
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| InChI Identifier | InChI=1S/C6H12O3/c1-5(7)3-2-4-6(8)9/h5,7H,2-4H2,1H3,(H,8,9)/t5-/m1/s1 |
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| InChI Key | YDCRNMJQROAWFT-RXMQYKEDSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Fatty Acyls |
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| Sub Class | Fatty acids and conjugates |
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| Direct Parent | Medium-chain fatty acids |
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| Alternative Parents | |
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| Substituents | - Medium-chain fatty acid
- Hydroxy fatty acid
- Secondary alcohol
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Alcohol
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic 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 | |
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| Role | |
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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. | 2.3 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.3951 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.15 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 135.5 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1215.8 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 298.4 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 90.9 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 174.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 77.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 273.6 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 | 321.7 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 105.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 666.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 259.1 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 | 901.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 201.5 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 244.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 510.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 271.0 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 | 232.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| (5R)-5-Hydroxyhexanoic acid,1TMS,isomer #1 | C[C@H](CCCC(=O)O)O[Si](C)(C)C | 1284.7 | Semi standard non polar | 33892256 | | (5R)-5-Hydroxyhexanoic acid,1TMS,isomer #2 | C[C@@H](O)CCCC(=O)O[Si](C)(C)C | 1260.3 | Semi standard non polar | 33892256 | | (5R)-5-Hydroxyhexanoic acid,2TMS,isomer #1 | C[C@H](CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1361.3 | Semi standard non polar | 33892256 | | (5R)-5-Hydroxyhexanoic acid,1TBDMS,isomer #1 | C[C@H](CCCC(=O)O)O[Si](C)(C)C(C)(C)C | 1532.3 | Semi standard non polar | 33892256 | | (5R)-5-Hydroxyhexanoic acid,1TBDMS,isomer #2 | C[C@@H](O)CCCC(=O)O[Si](C)(C)C(C)(C)C | 1479.5 | Semi standard non polar | 33892256 | | (5R)-5-Hydroxyhexanoic acid,2TBDMS,isomer #1 | C[C@H](CCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1812.9 | 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 - (5R)-5-Hydroxyhexanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0077-9100000000-13a584fc9ff05431f359 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (2 TMS) - 70eV, Positive | splash10-007c-9420000000-7b0146069089183f6082 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-11-05 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (TMS_1_2) - 70eV, Positive | Not Available | 2021-11-05 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-11-05 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (TBDMS_1_2) - 70eV, Positive | Not Available | 2021-11-05 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - (5R)-5-Hydroxyhexanoic acid GC-MS (TBDMS_2_1) - 70eV, Positive | Not Available | 2021-11-05 | 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 - (5R)-5-Hydroxyhexanoic acid 10V, Positive-QTOF | splash10-014j-5900000000-3bf905a3ced857b422b1 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 20V, Positive-QTOF | splash10-014i-9400000000-b18891bb2981129af001 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 40V, Positive-QTOF | splash10-066r-9000000000-3510777085e9e83a6561 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 10V, Negative-QTOF | splash10-001i-2900000000-3b9f578bc70674738913 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 20V, Negative-QTOF | splash10-03e9-4900000000-9944af827f01e265b301 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 40V, Negative-QTOF | splash10-0a4l-9000000000-9f3f80d6749af1cc6dbb | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 10V, Negative-QTOF | splash10-03ei-3900000000-49a5b195fc6d1869f127 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 20V, Negative-QTOF | splash10-0bta-9400000000-9da83e480e59bbc1ade7 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 40V, Negative-QTOF | splash10-052g-9000000000-e9748f05fe518d153135 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 10V, Positive-QTOF | splash10-014j-9400000000-744ecd7d7e40b1357594 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 20V, Positive-QTOF | splash10-05tk-9000000000-086484b097d1ba55d5d0 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - (5R)-5-Hydroxyhexanoic acid 40V, Positive-QTOF | splash10-052f-9000000000-db58a877cf5945d523f9 | 2021-09-25 | 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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