Methyl octadecenoate (cis-11)Methyl octadecenoate (cis-11)
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Methyl octadecenoate (cis-11)

Methyl cis-Vaccenate; C18:1 (cis-11) Methyl ester

This high purity fatty acid methyl ester is ideal as a standard and for biological studies. cis-11-Octadecenoic acid (cisvaccenic acid) is an eighteen-carbon monounsaturated fatty acid that is a major fatty acid in bacteria, including intestinal bacteria, and usually a minor component in plant and animal tissues.1 However, some plants have a much higher concentration of cis-vaccenic acid than others.2 It is a positional isomer of oleic acid which is much more abundant in plants and animals. It is commonly used as a bacterial biomarker. Although lower growth temperatures generally cause microorganisms to produce more unsaturated fatty acids, a mutant Escherichia coli was found to overproduce cis-vaccenic acid even at elevated temperatures.3
Cat# Size Price Qty Buy
1267 100 mg £121.88

Additional Information

Property Value or Rating
Product Size 100 mg
Manufacturer Matreya, LLC
Empirical Formula C19H36O2
CAS# 1937-63-9
Formula Weight 296
Solvent none
Source semisynthetic, plant
Purity 99%
Analytical Methods TLC, GC
Melting Point n/a
Solubility chloroform, hexane, ethyl ether
Physical Appearance liquid
Storage -20°C
Dry Ice No
Hazardous No

1. P. W. Holloway and Salih J. Wakil "Synthesis of Fatty Acids in Animal Tissues: II. THE OCCURRENCE AND BIOSYNTHESIS OF CIS-VACCENIC ACID” Journal of Biological Chemistry, Vol. 239 pp. 2489-2495, 1964 
2. Akira Shibahara et al. “cis-Vaccenic acid in mango pulp lipids” Lipids, Vol. 21:6 pp. 388-394, 1986 
3. D. Mendoza, J. Garwin, J. Cronan, “Overproduction of cis-Vaccenic Acid and Altered Temperature Control of Fatty Acid Synthesis in a Mutant of Escherichia coli” Journal of Bacteriology, Vol. 151:3 pp. 1608-1611, 1986

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