Record Information |
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Version | 5.0 |
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Status | Detected and Quantified |
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Creation Date | 2005-11-20 22:13:12 UTC |
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Update Date | 2023-02-21 17:15:48 UTC |
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HMDB ID | HMDB0001624 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | 2-Hydroxycaproic acid |
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Description | 2-hydroxycaproic acid, also known as 2-hydroxyhexanoic acid is a hydroxy fatty acid that is caproic (hexanoic) acid substituted by a hydroxy group at position 2. It has a role as an animal metabolite. It derives from a hexanoic acid. It is a conjugate acid of a 2-hydroxyhexanoate. 2-hydroxycaproic acid is a branched-chain alpha-keto acid that have been reported in normal human blood (PMID:7130306 ) and in normal amniotic fluid (PMID:7076774 ). It has been found that 2-hydroxycaproic acid is the most significant metabolite found in the CSF of patients infected with Nocardia. Nocardia sp. is an uncommon cause of meningitis, and Nocardia meningitis has a clinical picture similar to that of tuberculous meningitis (PMID:3818936 ; PMID:20615997 ). |
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Structure | InChI=1S/C6H12O3/c1-2-3-4-5(7)6(8)9/h5,7H,2-4H2,1H3,(H,8,9) |
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Synonyms | Value | Source |
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2-Hydroxycaproate | Generator | 2-Hydroxyhexanoate | HMDB | 2-Hydroxyhexanoic acid | HMDB | DL-2-Hydroxycaproate | HMDB | DL-2-Hydroxycaproic acid | HMDB | DL-2-Hydroxyhexanoate | HMDB | DL-2-Hydroxyhexanoic acid | HMDB | DL-2-Hydroxyhexanoic acidhydroxyhexanoate | HMDB | DL-2-Hydroxyhexanoic acidhydroxyhexanoic acid | HMDB | DL-Hydroxycaproate | HMDB | DL-Hydroxycaproic acid | HMDB | Hydroxy-N-caproate | HMDB | Hydroxy-N-caproic acid | HMDB | Hydroxycaproate | HMDB | Hydroxycaproic acid | HMDB | Hydroxyhexanoate | HMDB | Hydroxyhexanoic acid | HMDB | 2-Hydroxycaproic acid | ChEBI | DL-2-Hydroxy caproate | Generator, 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 | 2-hydroxyhexanoic acid |
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Traditional Name | hydroxyhexanoate |
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CAS Registry Number | 6064-63-7 |
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SMILES | CCCCC(O)C(O)=O |
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InChI Identifier | InChI=1S/C6H12O3/c1-2-3-4-5(7)6(8)9/h5,7H,2-4H2,1H3,(H,8,9) |
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InChI Key | NYHNVHGFPZAZGA-UHFFFAOYSA-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
- Alpha-hydroxy acid
- Hydroxy acid
- Monosaccharide
- Secondary alcohol
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Organic oxide
- Alcohol
- Carbonyl group
- Hydrocarbon derivative
- Organic oxygen compound
- Organooxygen compound
- 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 | 55 - 58 °C | 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 Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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2-Hydroxycaproic acid,1TMS,isomer #1 | CCCCC(O[Si](C)(C)C)C(=O)O | 1239.2 | Semi standard non polar | 33892256 | 2-Hydroxycaproic acid,1TMS,isomer #2 | CCCCC(O)C(=O)O[Si](C)(C)C | 1171.3 | Semi standard non polar | 33892256 | 2-Hydroxycaproic acid,2TMS,isomer #1 | CCCCC(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1280.9 | Semi standard non polar | 33892256 | 2-Hydroxycaproic acid,1TBDMS,isomer #1 | CCCCC(O[Si](C)(C)C(C)(C)C)C(=O)O | 1447.5 | Semi standard non polar | 33892256 | 2-Hydroxycaproic acid,1TBDMS,isomer #2 | CCCCC(O)C(=O)O[Si](C)(C)C(C)(C)C | 1393.7 | Semi standard non polar | 33892256 | 2-Hydroxycaproic acid,2TBDMS,isomer #1 | CCCCC(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 1696.3 | Semi standard non polar | 33892256 |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - 2-Hydroxycaproic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-002f-9000000000-8a7d8360cf90ac0786f6 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Hydroxycaproic acid GC-MS (2 TMS) - 70eV, Positive | splash10-009i-9430000000-1998df84d5020aa101f4 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Hydroxycaproic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid Quattro_QQQ 10V, Negative-QTOF (Annotated) | splash10-0019-9600000000-10146667ecdae4cce5b2 | 2012-07-24 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid Quattro_QQQ 25V, Negative-QTOF (Annotated) | splash10-000b-9000000000-c862568de48398a07c5a | 2012-07-24 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid Quattro_QQQ 40V, Negative-QTOF (Annotated) | splash10-0002-9200000000-f1ecc474a71b65c8401b | 2012-07-24 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negative-QTOF | splash10-001i-0900000000-e7e9ac132b84240918a7 | 2012-08-31 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negative-QTOF | splash10-000i-9400000000-acfd79e3f78eb9bbdde9 | 2012-08-31 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negative-QTOF | splash10-000i-9000000000-174fc428947a51fb1c48 | 2012-08-31 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negative-QTOF | splash10-001r-9000000000-3c2f2415c8308cc882bf | 2012-08-31 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negative-QTOF | splash10-001i-9000000000-c1e754811538f745822e | 2012-08-31 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ , negative-QTOF | splash10-001i-0900000000-e7e9ac132b84240918a7 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ , negative-QTOF | splash10-000i-9400000000-acfd79e3f78eb9bbdde9 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ , negative-QTOF | splash10-000i-9000000000-174fc428947a51fb1c48 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ , negative-QTOF | splash10-001r-9000000000-3c2f2415c8308cc882bf | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Hydroxycaproic acid LC-ESI-QQ , negative-QTOF | splash10-001i-9000000000-c1e754811538f745822e | 2017-09-14 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 10V, Positive-QTOF | splash10-0159-4900000000-6aef6b562dd04c12e7b8 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 20V, Positive-QTOF | splash10-0ap0-9300000000-f45f59d1359081efdc5d | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 40V, Positive-QTOF | splash10-0a4l-9000000000-a3e49c43493abd03741a | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 10V, Negative-QTOF | splash10-001i-3900000000-e83a45b173d15048668b | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 20V, Negative-QTOF | splash10-01p9-9500000000-b23fa478546cbc48f849 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 40V, Negative-QTOF | splash10-0a4r-9000000000-3753a08be3115affee2a | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 10V, Positive-QTOF | splash10-014i-9100000000-316563e9a01114337507 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 20V, Positive-QTOF | splash10-014j-9000000000-3eea8ca9bc19bab59249 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 40V, Positive-QTOF | splash10-052f-9000000000-a7ca27b940e9d0405fc5 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 10V, Negative-QTOF | splash10-001i-0900000000-b6e66d9d081f58fb31bf | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 20V, Negative-QTOF | splash10-001r-8900000000-03efd492d4589148581d | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxycaproic acid 40V, Negative-QTOF | splash10-0006-9100000000-9c86d81baaa70a16deca | 2021-09-22 | Wishart Lab | View Spectrum |
NMR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Experimental 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, experimental) | 2012-12-04 | 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, 100 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, 1000 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, 200 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, 300 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, 400 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, 500 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, 600 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, 700 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, 800 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 | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | Experimental 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | 2012-12-05 | Wishart Lab | View Spectrum |
IR SpectraSpectrum 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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General References | - Woolf LI, Hasinoff C, Perry A: Estimation of branched-chain alpha-keto acids in blood by gas chromatography. J Chromatogr. 1982 Sep 10;231(2):237-45. [PubMed:7130306 ]
- Ng KJ, Andresen BD, Bianchine JR, Iams JD, O'Shaugnessy RW, Stempel LE, Zuspan FP: Capillary gas chromatographic-mass spectrometric profiles of trimethylsilyl derivatives of organic acids from amniotic fluids of different gestational age. J Chromatogr. 1982 Mar 12;228:43-50. [PubMed:7076774 ]
- Brooks JB, Kasin JV, Fast DM, Daneshvar MI: Detection of metabolites by frequency-pulsed electron capture gas-liquid chromatography in serum and cerebrospinal fluid of a patient with Nocardia infection. J Clin Microbiol. 1987 Feb;25(2):445-8. [PubMed:3818936 ]
- van Duynhoven J, Vaughan EE, Jacobs DM, Kemperman RA, van Velzen EJ, Gross G, Roger LC, Possemiers S, Smilde AK, Dore J, Westerhuis JA, Van de Wiele T: Metabolic fate of polyphenols in the human superorganism. Proc Natl Acad Sci U S A. 2011 Mar 15;108 Suppl 1:4531-8. doi: 10.1073/pnas.1000098107. Epub 2010 Jun 25. [PubMed:20615997 ]
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