Date published: 2026-5-11

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Stearidonic Acid (CAS 20290-75-9)

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Alternate Names:
Moroctic Acid; 6Z, 9Z, 12Z, 15Z- octadecatetraenoic acid
CAS Number:
20290-75-9
Purity:
>98%
Molecular Weight:
276.41
Molecular Formula:
C18H28O2
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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Stearidonic acid is an 18-carbon, omega-3 fatty acid which is a dietary precursor to EPA and DHA. Stearidonic acid is present in small amounts in seed oils, especially black currant seed oil. Stearidonic acid (SDA) is a beneficial omega-3 fatty acid present in specific plant oils like hemp, flaxseed, and sunflower. Being a polyunsaturated fatty acid (PUFA), Stearidonic acid shares a structural resemblance with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).


Stearidonic Acid (CAS 20290-75-9) References

  1. Stearidonic acid as a 'pro-eicosapentaenoic acid'.  |  Harris, WS. 2012. Curr Opin Lipidol. 23: 30-4. PMID: 22186661
  2. Stearidonic acid: is there a role in the prevention and management of type 2 diabetes mellitus?  |  Banz, WJ., et al. 2012. J Nutr. 142: 635S-640S. PMID: 22279133
  3. Stearidonic acid raises red blood cell membrane eicosapentaenoic acid.  |  Maki, KC. and Rains, TM. 2012. J Nutr. 142: 626S-629S. PMID: 22279138
  4. Stearidonic acid-enhanced soybean oil: a plant-based source of (n-3) fatty acids for foods.  |  Harris, WS. 2012. J Nutr. 142: 600S-604S. PMID: 22279144
  5. Omega-3 Polyunsaturated Fatty Acids and Their Health Benefits.  |  Shahidi, F. and Ambigaipalan, P. 2018. Annu Rev Food Sci Technol. 9: 345-381. PMID: 29350557
  6. Stearidonic acid combined with alpha-linolenic acid improves lipemic and neurological markers in a rat model subject to a hypercaloric diet.  |  Cardoso, C., et al. 2018. Prostaglandins Leukot Essent Fatty Acids. 135: 137-146. PMID: 30103925
  7. Stearidonic Acid Concentration by Urea Complexation from Echium Oil.  |  Vázquez, L., et al. 2018. J Oleo Sci. 67: 1091-1099. PMID: 30175765
  8. Plant-based stearidonic acid as sustainable source of omega-3 fatty acid with functional outcomes on human health.  |  Prasad, P., et al. 2021. Crit Rev Food Sci Nutr. 61: 1725-1737. PMID: 32431176
  9. Supplemental dietary oils rich in oleic acid or linoleic acid attenuate egg yolk and tissue n-3 polyunsaturated fatty acid contents in laying hens co-fed oils enriched in either stearidonic acid or α-linolenic acid.  |  Elkin, RG., et al. 2021. Prostaglandins Leukot Essent Fatty Acids. 172: 102322. PMID: 34399187
  10. Comparison of Ahiflower oil containing stearidonic acid to a high-alpha-linolenic acid flaxseed oil at two levels on tissue omega-3 enrichment in broilers.  |  El-Zenary, ASA., et al. 2022. Lipids. 57: 57-68. PMID: 34800048
  11. Solid-state fermentation produces greater stearidonic acid levels in genetically engineered Mucor circinelloides.  |  Xin, F., et al. 2022. Lett Appl Microbiol. 75: 1617-1627. PMID: 36067029
  12. Efficient Synthesis of Stearidonic Acid Enriched Triacylglycerol from Ahiflower Seed Oil via a Two-Step Enzyme Reaction.  |  Ju, C., et al. 2022. J Oleo Sci. 71: 1679-1688. PMID: 36310055
  13. Neuroprotective Effect of Stearidonic Acid on Amyloid β-Induced Neurotoxicity in Rat Hippocampal Cells.  |  Li, Y., et al. 2022. Antioxidants (Basel). 11: PMID: 36552565

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Stearidonic Acid, 1 mg

sc-360690
1 mg
$115.00

Stearidonic Acid, 5 mg

sc-360690A
5 mg
$549.00

Stearidonic Acid, 10 mg

sc-360690B
10 mg
$1039.00

Stearidonic Acid, 50 mg

sc-360690C
50 mg
$4994.00

Stearidonic Acid, 100 mg

sc-360690D
100 mg
$8677.00