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| IUPACName=(''E'')-octadec-9-enoic acid |
| IUPACName=(''E'')-octadec-9-enoic acid |
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| SystematicName= |
| SystematicName= |
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| OtherNames=(E)-9-octadecenoic acid<br/>( |
| OtherNames=(''E'')-9-octadecenoic acid<br/>(9''E'')-octadecenoic acid<br/>18:1 ''trans''-9<br/>C18:1 ''trans''-9 |
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|Section1={{Chembox Identifiers |
|Section1={{Chembox Identifiers |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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}} |
}} |
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|Section2={{Chembox Properties |
|Section2={{Chembox Properties |
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| Formula=C |
| Formula={{chem|C|18|H|34|O|2}} |
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| MolarMass=282.46 g/mol |
| MolarMass=282.46 g/mol |
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| Appearance= colorless waxy solid |
| Appearance= colorless waxy solid |
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Names | |
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IUPAC name
(E)-octadec-9-enoic acid | |
Other names
(E)-9-octadecenoic acid | |
Identifiers | |
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3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider |
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DrugBank |
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ECHA InfoCard | 100.003.642 ![]() |
KEGG |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C 18H 34O 2 | |
Molar mass | 282.46 g/mol |
Appearance | colorless waxy solid |
Density | 0.8734 g/cm3 |
Melting point | 45 °C (113 °F) |
-204.8·10−6cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Elaidic acid is a chemical compound with the formula C
18H
34O
2, specifically the fatty acid with structural formula HO(O=)C–(CH2–)7CH=CH–(CH2–)8H, with the double bond (between carbon atoms 9 and 10) in trans configuration. It is a colorless oily solid. Its salts and esters are called elaidates.
Elaidic acid is an unsaturated trans fatty acid, with code C18:1 trans-9. This compound has attracted attention because it is a major trans fat found in hydrogenated vegetable oils, and trans fats have been implicated in heart disease.[1]
It is the trans isomerofoleic acid. The name of the elaidinization reaction comes from elaidic acid.
Elaidic acid occurs naturally in small amounts in caprine and bovine milk (very roughly 0.1% of the fatty acids)[2] and in some meats.[3] It also comprises 2.50% of the fats from the fruit of the durian species Durio graveolens.[4]
Elaidic acid increases plasma cholesterylester transfer protein (CETP) activity which lowers HDL cholesterol.[5]
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