Record Information |
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Version | 1.0 |
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Creation date | 2010-04-08 22:10:16 UTC |
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Update date | 2020-09-17 15:38:39 UTC |
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Primary ID | FDB012607 |
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Secondary Accession Numbers | Not Available |
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Chemical Information |
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FooDB Name | 4-Methyl-2-oxopentanoic acid |
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Description | Ketoleucine, also known as 2-oxoisocaproate or 2-oxoleucine, belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms. Ketoleucine is an extremely weak basic (essentially neutral) compound (based on its pKa). Ketoleucine exists in all living species, ranging from bacteria to humans. Outside of the human body, Ketoleucine has been detected, but not quantified in, several different foods, such as oriental wheats, nances, corianders, quinces, and soursops. This could make ketoleucine a potential biomarker for the consumption of these foods. Ketoleucine is a potentially toxic compound. Ketoleucine, with regard to humans, has been found to be associated with several diseases such as eosinophilic esophagitis, periodontal probing depth, rheumatoid arthritis, and gout; ketoleucine has also been linked to the inborn metabolic disorder maple syrup urine disease. |
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CAS Number | 816-66-0 |
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Structure | |
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Synonyms | Synonym | Source |
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Not Available | Not Available |
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Predicted Properties | |
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Chemical Formula | C6H10O3 |
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IUPAC name | 4-methyl-2-oxopentanoic acid |
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InChI Identifier | InChI=1S/C6H10O3/c1-4(2)3-5(7)6(8)9/h4H,3H2,1-2H3,(H,8,9) |
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InChI Key | BKAJNAXTPSGJCU-UHFFFAOYSA-N |
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Isomeric SMILES | CC(C)CC(=O)C(O)=O |
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Average Molecular Weight | 130.1418 |
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Monoisotopic Molecular Weight | 130.062994186 |
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Classification |
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Description | Belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms. |
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Kingdom | Organic compounds |
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Super Class | Organic acids and derivatives |
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Class | Keto acids and derivatives |
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Sub Class | Short-chain keto acids and derivatives |
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Direct Parent | Short-chain keto acids and derivatives |
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Alternative Parents | |
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Substituents | - Branched fatty acid
- Methyl-branched fatty acid
- Short-chain keto acid
- Alpha-keto acid
- Fatty acyl
- Alpha-hydroxy ketone
- Ketone
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Carbonyl group
- Hydrocarbon derivative
- Organic oxygen compound
- Organooxygen compound
- Organic oxide
- 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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Ontology | No ontology term |
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Physico-Chemical Properties |
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Physico-Chemical Properties - Experimental | Property | Value | Reference |
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Physical state | Liquid | |
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Physical Description | Not Available | |
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Mass Composition | C 55.37%; H 7.74%; O 36.88% | DFC |
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Melting Point | Mp 10-11° (-1.5°) | DFC |
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Boiling Point | Bp15 84-85° | DFC |
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Experimental Water Solubility | Not Available | |
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Experimental logP | Not Available | |
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Experimental pKa | Not Available | |
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Isoelectric point | Not Available | |
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Charge | Not Available | |
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Optical Rotation | Not Available | |
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Spectroscopic UV Data | Not Available | |
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Density | Not Available | |
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Refractive Index | Not Available | |
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Spectra |
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Spectra | |
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EI-MS/GC-MS | Type | Description | Splash Key | View |
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GC-MS | 4-Methyl-2-oxopentanoic acid, 3 TMS, GC-MS Spectrum | splash10-000i-9400000000-49d055f04bfe1877ac5b | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, 3 TMS, GC-MS Spectrum | splash10-029j-8930000000-c6c54bf6ee2995a2195b | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-0002-1910000000-0ba38257e25873312809 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, 2 TMS, GC-MS Spectrum | splash10-0a5c-4930000000-61247369a805fa2a77a7 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, 1 MEOX; 1 TMS, GC-MS Spectrum | splash10-000i-9510000000-8bfc5a54e29f65edf361 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, 1 MEOX; 1 TMS, GC-MS Spectrum | splash10-00lj-9620000000-aa8409ceb2359d903f38 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-000i-9400000000-49d055f04bfe1877ac5b | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-029j-8930000000-c6c54bf6ee2995a2195b | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-0002-1910000000-0ba38257e25873312809 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-0a5c-4930000000-61247369a805fa2a77a7 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-000i-9510000000-8bfc5a54e29f65edf361 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-00lj-9620000000-aa8409ceb2359d903f38 | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-00ks-7930000000-4e9cfd715fa884d30e7f | Spectrum | GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, GC-MS Spectrum | splash10-000i-9500000000-709ebcb57f006703c269 | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive | splash10-0006-9000000000-e410bce23706f826f8dd | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positive | splash10-0006-9400000000-c4f06cea1e27a2b24660 | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive | Not Available | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive | Not Available | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, TMS_1_2, Predicted GC-MS Spectrum - 70eV, Positive | Not Available | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, TBDMS_1_1, Predicted GC-MS Spectrum - 70eV, Positive | Not Available | Spectrum | Predicted GC-MS | 4-Methyl-2-oxopentanoic acid, TBDMS_1_2, Predicted GC-MS Spectrum - 70eV, Positive | Not Available | Spectrum |
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MS/MS | Type | Description | Splash Key | View |
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MS/MS | LC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated) | splash10-0006-9000000000-bed7ac074a60210971e3 | 2012-07-24 | View Spectrum | MS/MS | LC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated) | splash10-014i-9200000000-2fa08d2b4df406cf63ea | 2012-07-24 | View Spectrum | MS/MS | LC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated) | splash10-014j-9000000000-045be8e8dca3f93d45ba | 2012-07-24 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negative | splash10-004i-0900000000-237fa8ad6bfb929be31e | 2012-08-31 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negative | splash10-004r-9700000000-8d38d24fce78b1ff13e6 | 2012-08-31 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negative | splash10-0a59-9000000000-759cfc0817917283d1a5 | 2012-08-31 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negative | splash10-0a4l-9000000000-2a068ada71fbe0a5a988 | 2012-08-31 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negative | splash10-0a4l-9000000000-58e61e31f3c96d84d799 | 2012-08-31 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ , negative | splash10-004i-0900000000-237fa8ad6bfb929be31e | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ , negative | splash10-004r-9700000000-8d38d24fce78b1ff13e6 | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ , negative | splash10-0a59-9000000000-759cfc0817917283d1a5 | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ , negative | splash10-0a4l-9000000000-2a068ada71fbe0a5a988 | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-QQ , negative | splash10-0a4l-9000000000-58e61e31f3c96d84d799 | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-ITFT , negative | splash10-004i-0900000000-556a0d1cf568609752d1 | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - LC-ESI-IT , negative | splash10-004r-5900000000-20f6923c8ed45e9fa088 | 2017-09-14 | View Spectrum | MS/MS | LC-MS/MS Spectrum - 35V, Negative | splash10-004i-0900000000-b66d521478c92e2d77d0 | 2021-09-20 | View Spectrum | MS/MS | LC-MS/MS Spectrum - 10V, Negative | splash10-004i-0900000000-9c3a698d9f28af574ef6 | 2021-09-20 | View Spectrum | MS/MS | LC-MS/MS Spectrum - 40V, Negative | splash10-03di-9000000000-47ced70de4860e900283 | 2021-09-20 | View Spectrum | MS/MS | LC-MS/MS Spectrum - 20V, Negative | splash10-03xr-7900000000-0461a5a56e36a03fe522 | 2021-09-20 | View Spectrum | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-08gr-7900000000-31021fda89eb6535185f | 2015-05-27 | View Spectrum | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0btm-9200000000-3bf5df4b557ef87267f4 | 2015-05-27 | View Spectrum | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-0a4i-9000000000-37839bf70647d24b94a4 | 2015-05-27 | View Spectrum | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-004i-4900000000-796467909d1d4c087a07 | 2015-05-27 | View Spectrum | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-01ri-9400000000-0abcd021721f32c10e42 | 2015-05-27 | View Spectrum | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-015l-9000000000-5c33a47dfeb09a182983 | 2015-05-27 | View Spectrum |
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NMR | Type | Description | | View |
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1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, experimental) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, D2O, experimental) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, D2O, experimental) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | | Spectrum | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | | Spectrum | 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | | Spectrum | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | | Spectrum |
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External Links |
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ChemSpider ID | 69 |
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ChEMBL ID | CHEMBL445647 |
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KEGG Compound ID | C00233 |
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Pubchem Compound ID | 70 |
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Pubchem Substance ID | Not Available |
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ChEBI ID | 48430 |
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Phenol-Explorer ID | Not Available |
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DrugBank ID | DB03229 |
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HMDB ID | HMDB00695 |
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CRC / DFC (Dictionary of Food Compounds) ID | HJH40-C:HJH40-C |
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EAFUS ID | 2436 |
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Dr. Duke ID | Not Available |
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BIGG ID | 34334 |
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KNApSAcK ID | C00019677 |
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HET ID | COI |
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Food Biomarker Ontology | Not Available |
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VMH ID | Not Available |
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Flavornet ID | Not Available |
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GoodScent ID | rw1047101 |
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SuperScent ID | Not Available |
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Wikipedia ID | Not Available |
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Phenol-Explorer Metabolite ID | Not Available |
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Duplicate IDS | Not Available |
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Old DFC IDS | Not Available |
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Associated Foods |
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Food | Content Range | Average | Reference |
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Food | | | Reference |
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Biological Effects and Interactions |
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Health Effects / Bioactivities | Not Available |
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Enzymes | Name | Gene Name | UniProt ID |
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Branched-chain-amino-acid aminotransferase, cytosolic | BCAT1 | P54687 | Branched-chain-amino-acid aminotransferase, mitochondrial | BCAT2 | O15382 | 2-oxoisovalerate dehydrogenase subunit beta, mitochondrial | BCKDHB | P21953 |
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Pathways | Name | SMPDB Link | KEGG Link |
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Valine, Leucine and Isoleucine Degradation | SMP00032 | map00280 |
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Metabolism | Not Available |
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Biosynthesis | Not Available |
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Organoleptic Properties |
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Flavours | Flavor | Citations |
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fruity |
- The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
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Files |
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MSDS | show |
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References |
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Synthesis Reference | Not Available |
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General Reference | Not Available |
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Content Reference | |
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