Elaidic acid
Chemical compound / From Wikipedia, the free encyclopedia
Elaidic acid is a chemical compound with the formula C
18H
34O
2, specifically the fatty acid with structural formula HOOC−(CH2)7−CH=CH−(CH2)7−CH3, 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.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
(E)-octadec-9-enoic acid | |
Other names
(E)-9-octadecenoic acid (9E)-octadecenoic acid trans-9-octadecenoic acid 18:1 trans-9 C18:1 trans-9 | |
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ECHA InfoCard | 100.003.642 |
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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) |
-204.8·10−6 cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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 isomer of oleic acid. The name of the elaidinization reaction comes from elaidic acid.
Its name comes from the Ancient Greek word ἔλαιον (elaion), meaning oil.