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Octadecenoic acid (cis-11)

CATALOG # 1266


  • Catalog #:1266
  • Scientific Name:Octadecenoic acid (cis-11)
  • Common Name:cis-Vaccenic acid; C18:1 (cis-11) Fatty acid
  • Empirical Formula:C18H34O2
  • CAS#:506-17-2
  • SDS:View Safety Data Sheet
  • Data Sheet:View Data Sheet
  • Formula Weight:282
  • Unit:100 mg
  • Source:natural
  • Purity:99%
  • Analytical Methods:TLC, GC
  • Natural Source:plant
  • Solubility:chloroform, hexane, ethyl ether
  • Physical Appearance:liquid
  • Storage:-20°C
  • Dry Ice:No
  • Hazardous:No


Application Notes:

cis-11-Octadecenoic acid (cis-vaccenic 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 cisvaccenic acid even at elevated temperatures.3

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
Price $156.00

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