Methyl octadecenoate (trans-9)Methyl octadecenoate (trans-9)
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Methyl octadecenoate (trans-9)

Methyl elaidate; C18:1 (trans-9) Methyl ester

This is a trans fatty acid methyl ester and is an isomer of oleic acid. Much of the fatty acid content in hydrogenated fats is elaidic acid as oleic acid is converted to the trans isomer. It is an enhancer of cholesteryl ester transfer protein activity which increases low density lipoprotein cholesterol and decreases high density lipoprotein cholesterol.1 Consumption of trans fats have long been suspected to increase the risk of cardiovascular disease, change the blood lipid profiles, alter endothelial functions, and affect immune function. Elaidic acid has been found to cause a pro-inflammatory T-cell response2 and it increases the concentration of lipoprotein(a).3 Recently elaidic acid from partially hydrogenated fats has been implicated in the development of preeclampsia.4
Cat# Size Price Qty Buy
1150 1 gram £130.05

Additional Information

Property Value or Rating
Product Size 1 gram
Manufacturer Matreya, LLC
Empirical Formula C19H36O2
CAS# 1937-62-8
Formula Weight 296.5
Solvent none
Source natural
Purity 99%
Analytical Methods GC, TLC
Natural Source Plant
Solubility chloroform, hexane, ethyl ether
Physical Appearance A neat liquid
Storage -20°C

1. M. Abbey and P. Nestel “Plasma cholesteryl ester transfer protein activity is increased when trans-elaidic acid is substituted for cis-oleic acid in the diet” Atherosclerosis, Vol. 106(1) pp. 99-107, 1994 
2. M. Ruth et al. “Vaccenic and Elaidic Acid Modify Plasma and Splenocyte Membrane Phospholipids and Mitogen-Stimulated Cytokine Production in Obese Insulin Resistant JCR: LA-cp Rats” Nutrients, Vol. 2 pp. 181-197, 2010 
3. P. Nestel et al. “Plasma lipoprotein lipid and Lp[a] changes with substitution of elaidic acid for oleic acid in the diet” Journal of Lipid Research, Vol. 33 pp. 1029-1036, 1992 
4. M. Williams et al. “Risk of Preeclampsia in Relation to Elaidic Acid (Trans Fatty Acid) in Maternal Erythrocytes” Gynecologic and Obstetric Investigation, Vol. 46(2), 1998

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