Date published: 2025-11-2

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9Z,11E,13E-Octadecatrienoic Acid ethyl ester (CAS 42021-86-3)

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Alternate Names:
α-ESA ethyl ester; Ethyl α-eleostearate
Application:
9Z,11E,13E-Octadecatrienoic Acid ethyl ester is a conjugated polyunsaturated fatty acid
CAS Number:
42021-86-3
Molecular Weight:
306.5
Molecular Formula:
C20H34O2
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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9Z,11E,13E-Octadecatrienoic Acid ethyl ester is a conjugated polyunsaturated fatty acid found in plant seed oil which accounts for about 70% in tung oil and 60% of the total fatty acid composition of bitter gourd seed oil. alpha-ESA is metabolized and converted to conjugated linoleic acid (9Z,11E-CLA) in rats. It has shown potential as a tumor growth suppressor. In colon cancer Caco-2 cells, alpha-ESA induced apoptosis through up-regulation of GADD45, p53, and PPARgamma. In DLD-1 cells supplemented with alpha-ESA, apoptosis was induced via lipid peroxidation with an EC50 of 20 µM. It also inhibits DNA polymerases and Topo (topoisomerases) with IC50s ranging from ~5-20 muM for different isoforms of the enzymes. alpha-ESA ethyl ester is a neutral, more lipid soluble form of the free acid.


9Z,11E,13E-Octadecatrienoic Acid ethyl ester (CAS 42021-86-3) References

  1. Hepatoprotective effect of Centella asiatica 50% ethanol extract against acetaminophen-induced acute liver injury in BALB/c mice.  |  Park, DW., et al. 2021. Toxicol Res. 37: 261-275. PMID: 33868982
  2. Metabolite fingerprinting of the ripening process in Pixian douban using a feature-based molecular network and metabolomics analysis.  |  Li, W., et al. 2023. Food Chem. 418: 135940. PMID: 36965392
  3. Malaysian brown macroalga Padina australis mitigates lipopolysaccharide-stimulated neuroinflammation in BV2 microglial cells.  |  Subermaniam, K., et al. 2023. Iran J Basic Med Sci. 26: 669-679. PMID: 37275754
  4. Microbial Communities and Metabolites of Whole Crop Corn Silage Inoculated with Lentilactobacillus plantarum and Lentilactobacillus buchneri  |  Guo, Q., et al. 2022. Processes. 10(11): 2369.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

9Z,11E,13E-Octadecatrienoic Acid ethyl ester, 1 mg

sc-205198
1 mg
$92.00

9Z,11E,13E-Octadecatrienoic Acid ethyl ester, 100 mg

sc-205198A
100 mg
$224.00