Elaidic acid

Elaidic acid

Names
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
Identifiers
CAS Number	112-79-8 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:27997 Y
ChEMBL	ChEMBL460657 Y
ChemSpider	553123 Y
DrugBank	DB04224 Y
ECHA InfoCard	100.003.642
KEGG	C01712 Y
PubChem CID	637517
UNII	4837010H8C Y
CompTox Dashboard (EPA)	DTXSID8058619
InChI 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+ Y Key: ZQPPMHVWECSIRJ-MDZDMXLPSA-N Y InChI=1/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+ Key: ZQPPMHVWECSIRJ-MDZDMXLPBT
SMILES O=C(O)CCCCCCC/C=C/CCCCCCCC
Properties
Chemical formula	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)
Magnetic susceptibility (χ)	-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). Y verify (what is YN ?) Infobox references

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.

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.