Record Information |
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Version | 2.0 |
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Created at | 2005-11-16 15:48:42 UTC |
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Updated at | 2024-09-03 04:15:02 UTC |
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NP-MRD ID | NP0000557 |
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Natural Product DOI | https://doi.org/10.57994/0127 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | Oleic acid |
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Description | Oleic acid (or 9Z)-Octadecenoic acid) is an unsaturated C-18 or an omega-9 fatty acid that is the most widely distributed and abundant fatty acid in nature. It occurs naturally in various animal and vegetable fats and oils. It is an odorless, colorless oil, although commercial samples may be yellowish. The name derives from the Latin word oleum, which means oil. Oleic acid is the most abundant fatty acid in human adipose tissue, and the second most abundant in human tissues overall, following palmitic acid. Oleic acid is a component of the normal human diet, being a part of animal fats and vegetable oils. Triglycerides of oleic acid represent the majority of olive oil (about 70%). Oleic acid triglycerides also make up 59–75% of pecan oil, 61% of canola oil, 36–67% of peanut oil, 60% of macadamia oil, 20–80% of sunflower oil, 15–20% of grape seed oil, sea buckthorn oil, 40% of sesame oil, and 14% of poppyseed oil. High oleic variants of plant sources such as sunflower (~80%) and canola oil (70%) also have been developed. Consumption has been associated with decreased low-density lipoprotein (LDL) cholesterol, and possibly with increased high-density lipoprotein (HDL) cholesterol, however, the ability of oleic acid to raise HDL is still debated. Oleic acid may be responsible for the hypotensive (blood pressure reducing) effects of olive oil that is considered a health benefit. Oleic acid is used in manufacturing of surfactants, soaps, plasticizers. It is also used as an emulsifying agent in foods and pharmaceuticals. Oleic acid is used commercially in the preparation of oleates and lotions, and as a pharmaceutical solvent. |
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Structure | CCCCCCCC\C=C/CCCCCCCC(O)=O InChI=1S/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H,19,20)/b10-9- |
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Synonyms | Value | Source |
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(9Z)-Octadecenoic acid | ChEBI | (Z)-Octadec-9-enoic acid | ChEBI | 18:1 N-9 | ChEBI | 18:1DElta9cis | ChEBI | C18:1 N-9 | ChEBI | cis-9-Octadecenoic acid | ChEBI | cis-Delta(9)-Octadecenoic acid | ChEBI | cis-Oleic acid | ChEBI | FA 18:1 | ChEBI | Octadec-9-enoic acid | ChEBI | Oelsaeure | ChEBI | Oleate | ChEBI | (9Z)-Octadecenoate | Generator | (Z)-Octadec-9-enoate | Generator | cis-9-Octadecenoate | Generator | cis-delta(9)-Octadecenoate | Generator | cis-Δ(9)-octadecenoate | Generator | cis-Δ(9)-octadecenoic acid | Generator | cis-Oleate | Generator | Octadec-9-enoate | Generator | (9Z)-9-Octadecenoate | HMDB | (9Z)-9-Octadecenoic acid | HMDB | (Z)-9-Octadecanoate | HMDB | (Z)-9-Octadecanoic acid | HMDB | 9,10-Octadecenoate | HMDB | 9,10-Octadecenoic acid | HMDB | 9-(Z)-Octadecenoate | HMDB | 9-(Z)-Octadecenoic acid | HMDB | 9-Octadecenoate | HMDB | 9-Octadecenoic acid | HMDB | Century CD fatty acid | HMDB | cis-Octadec-9-enoate | HMDB | cis-Octadec-9-enoic acid | HMDB | Distoline | HMDB | Emersol 210 | HMDB | Emersol 211 | HMDB | Emersol 213 | HMDB | Emersol 220 white oleate | HMDB | Emersol 220 white oleic acid | HMDB | Emersol 221 low titer white oleate | HMDB | Emersol 221 low titer white oleic acid | HMDB | Emersol 233LL | HMDB | Emersol 6321 | HMDB | Emersol 6333 NF | HMDB | Emersol 7021 | HMDB | Glycon ro | HMDB | Glycon wo | HMDB | Groco 2 | HMDB | Groco 4 | HMDB | Groco 5l | HMDB | Groco 6 | HMDB | Industrene 104 | HMDB | Industrene 105 | HMDB | Industrene 205 | HMDB | Industrene 206 | HMDB | L'acide oleique | HMDB | Metaupon | HMDB | Oelsauere | HMDB | Oleic acid extra pure | HMDB | Oleinate | HMDB | Oleinic acid | HMDB | Pamolyn | HMDB | Pamolyn 100 | HMDB | Pamolyn 100 FG | HMDB | Pamolyn 100 FGK | HMDB | Pamolyn 125 | HMDB | Priolene 6900 | HMDB | Red oil | HMDB | Tego-oleic 130 | HMDB | Vopcolene 27 | HMDB | Wecoline oo | HMDB | Z-9-Octadecenoate | HMDB | Z-9-Octadecenoic acid | HMDB | Acid, 9-octadecenoic | HMDB | Acid, oleic | HMDB | 9 Octadecenoic acid | HMDB | Acid, cis-9-octadecenoic | HMDB | cis 9 Octadecenoic acid | HMDB | FA(18:1(9Z)) | HMDB | FA(18:1n9) | HMDB |
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Chemical Formula | C18H34O2 |
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Average Mass | 282.4614 Da |
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Monoisotopic Mass | 282.25588 Da |
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IUPAC Name | (9Z)-octadec-9-enoic acid |
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Traditional Name | oleic acid |
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CAS Registry Number | 112-80-1 |
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SMILES | CCCCCCCC\C=C/CCCCCCCC(O)=O |
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InChI Identifier | InChI=1S/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H,19,20)/b10-9- |
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InChI Key | ZQPPMHVWECSIRJ-KTKRTIGZSA-N |
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Experimental Spectra |
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| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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1D NMR | 1H NMR Spectrum (1D, 700 MHz, CDCl3, simulated) | Merangelgri | | | 2022-10-12 | View Spectrum | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, CDCL3, experimental) | merangelgri@uncg.edu | Not Available | Not Available | 2024-05-11 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, CDCL3, experimental) | merangelgri@uncg.edu | Not Available | Not Available | 2024-05-11 | View Spectrum | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, CDCl3, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CDCl3, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Predicted Spectra |
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| Not Available | Chemical Shift Submissions |
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| Not Available | Species |
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Species of Origin | |
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Species Where Detected | |
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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
- Unsaturated fatty acid
- Straight chain fatty acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | |
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Physical Properties |
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State | Liquid |
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Experimental Properties | |
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Predicted Properties | |
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