| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2008-10-15 12:12:16 UTC |
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| Update Date | 2022-03-07 02:51:02 UTC |
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| HMDB ID | HMDB0010733 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 3-Oxohexadecanoic acid |
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| Description | In humans fatty acids are predominantly formed in the liver and adipose tissue, and mammary glands during lactation. 3-Oxo-hexadecanoic acid is an intermediate in fatty acid biosynthesis. Specifically, 3-Oxo-hexadecanoic acid is converted from Malonic acid via three enzymes; 3-oxoacyl-[acyl-carrier-protein] synthase, fatty-acid Synthase and beta-ketoacyl -acyl-carrier-protein synthase II. (EC:2.3.1.41, E.C: 2.3.1.85, 2.3.1.179). |
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| Structure | CCCCCCCCCCCCCC(=O)CC(O)=O InChI=1S/C16H30O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-15(17)14-16(18)19/h2-14H2,1H3,(H,18,19) |
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| Synonyms | | Value | Source |
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| 3-Keto palmitic acid | ChEBI | | 3-Keto palmitate | Generator | | 3-Oxohexadecanoate | Generator | | 3-oxo-Hexadecanoate | HMDB | | 3-oxo-Hexadecanoic acid | HMDB |
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| Chemical Formula | C16H30O3 |
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| Average Molecular Weight | 270.4076 |
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| Monoisotopic Molecular Weight | 270.219494826 |
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| IUPAC Name | 3-oxohexadecanoic acid |
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| Traditional Name | 3-oxohexadecanoic acid |
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| CAS Registry Number | Not Available |
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| SMILES | CCCCCCCCCCCCCC(=O)CC(O)=O |
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| InChI Identifier | InChI=1S/C16H30O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-15(17)14-16(18)19/h2-14H2,1H3,(H,18,19) |
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| InChI Key | ASICPMTWQSESKX-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 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 | Long-chain fatty acids |
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| Alternative Parents | |
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| Substituents | - Long-chain fatty acid
- Beta-keto acid
- Keto fatty acid
- Beta-hydroxy ketone
- Keto acid
- 1,3-dicarbonyl compound
- Ketone
- Carboxylic acid
- Carboxylic acid derivative
- Monocarboxylic acid or derivatives
- Organooxygen compound
- Hydrocarbon derivative
- Carbonyl group
- Organic oxide
- Organic oxygen 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 | 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. | 10.74 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 20.4062 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.35 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2804.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 551.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 222.3 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 290.3 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 526.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 871.4 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 | 852.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 87.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1891.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 557.4 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 | 1707.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 648.7 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 459.6 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 618.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 467.5 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 | 9.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 3-Oxohexadecanoic acid,1TMS,isomer #1 | CCCCCCCCCCCCCC(=O)CC(=O)O[Si](C)(C)C | 2144.6 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,1TMS,isomer #2 | CCCCCCCCCCCCCC(=CC(=O)O)O[Si](C)(C)C | 2275.6 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,1TMS,isomer #3 | CCCCCCCCCCCCC=C(CC(=O)O)O[Si](C)(C)C | 2230.6 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TMS,isomer #1 | CCCCCCCCCCCCCC(=CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2305.7 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TMS,isomer #1 | CCCCCCCCCCCCCC(=CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2288.2 | Standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TMS,isomer #1 | CCCCCCCCCCCCCC(=CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2248.9 | Standard polar | 33892256 | | 3-Oxohexadecanoic acid,2TMS,isomer #2 | CCCCCCCCCCCCC=C(CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2290.8 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TMS,isomer #2 | CCCCCCCCCCCCC=C(CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2292.0 | Standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TMS,isomer #2 | CCCCCCCCCCCCC=C(CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2271.9 | Standard polar | 33892256 | | 3-Oxohexadecanoic acid,1TBDMS,isomer #1 | CCCCCCCCCCCCCC(=O)CC(=O)O[Si](C)(C)C(C)(C)C | 2396.0 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,1TBDMS,isomer #2 | CCCCCCCCCCCCCC(=CC(=O)O)O[Si](C)(C)C(C)(C)C | 2532.5 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,1TBDMS,isomer #3 | CCCCCCCCCCCCC=C(CC(=O)O)O[Si](C)(C)C(C)(C)C | 2486.9 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TBDMS,isomer #1 | CCCCCCCCCCCCCC(=CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2792.6 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TBDMS,isomer #1 | CCCCCCCCCCCCCC(=CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2630.8 | Standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TBDMS,isomer #1 | CCCCCCCCCCCCCC(=CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2523.2 | Standard polar | 33892256 | | 3-Oxohexadecanoic acid,2TBDMS,isomer #2 | CCCCCCCCCCCCC=C(CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2764.9 | Semi standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TBDMS,isomer #2 | CCCCCCCCCCCCC=C(CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2641.3 | Standard non polar | 33892256 | | 3-Oxohexadecanoic acid,2TBDMS,isomer #2 | CCCCCCCCCCCCC=C(CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2532.4 | Standard 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 - 3-Oxohexadecanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-000i-9310000000-cbe87b90e0d76d0b7b6e | 2016-09-22 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Oxohexadecanoic acid GC-MS (1 TMS) - 70eV, Positive | splash10-00bl-9350000000-19098d6766f5fe366a8f | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Oxohexadecanoic 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 - 3-Oxohexadecanoic acid 10V, Positive-QTOF | splash10-0fk9-0090000000-88cb17654019c375fd8f | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 20V, Positive-QTOF | splash10-0kdi-4490000000-fc10db895a02dece8e0a | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 40V, Positive-QTOF | splash10-052f-9510000000-b641ae801d89654561fa | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 10V, Negative-QTOF | splash10-016r-0090000000-b91ff4f42c7f82175507 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 20V, Negative-QTOF | splash10-056r-3190000000-9e44b40dad6342cd32b2 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 40V, Negative-QTOF | splash10-0a4i-9120000000-7ca7725026a1f8e6fcb5 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 10V, Positive-QTOF | splash10-00di-4390000000-dab592b70c28c9cf2657 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 20V, Positive-QTOF | splash10-0532-9310000000-cb95e5a1dca3b4f18e8e | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 40V, Positive-QTOF | splash10-0a59-9000000000-d6b400ba2d3113fe293c | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 10V, Negative-QTOF | splash10-066r-6090000000-143c55201e82a73f862c | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 20V, Negative-QTOF | splash10-0a4i-9010000000-ac0f75bfdcd4c57c57fe | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxohexadecanoic acid 40V, Negative-QTOF | splash10-0006-9000000000-5043f12dfe53406fde8d | 2021-09-23 | Wishart Lab | View Spectrum |
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