Date published: 2025-10-14

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Undecylenic Acid Sodium Salt (CAS 3398-33-2)

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Alternate Names:
Sodium undec-10-enoate; 10-Undecenoic acid
CAS Number:
3398-33-2
Molecular Weight:
206.26
Molecular Formula:
C11H19O2•Na
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Undecylenic Acid Sodium Salt, also known as Sodium undecylenate is a naturally occurring fatty acid that can be found in various plant and animal sources. It serves as a pivotal component in the synthesis of surfactants, emulsifiers, and detergents. Additionally, it finds utility in the production of lubricants, lubricant additives, and fuel additives. The versatile nature of sodium undecylenate manifests through its surfactant capabilities, wherein it diminishes the surface tension of liquids and enhances the solubility of other compounds. Furthermore, it acts as an emulsifier by facilitating the binding of water and oil molecules, resulting in the formation of stable emulsions. Furthermore, sodium undecylenate demonstrates lubricating properties by reducing friction and minimizing wear between two interacting surfaces.


Undecylenic Acid Sodium Salt (CAS 3398-33-2) References

  1. Facile synthesis of gold icosahedra in an aqueous solution by reacting HAuCl(4) with N-vinyl pyrrolidone.  |  Yavuz, MS., et al. 2009. Chemistry. 15: 13181-7. PMID: 19876970
  2. RIFM fragrance ingredient safety assessment, 10-undecenoic acid, CAS Registry Number 112-38-9.  |  Api, AM., et al. 2020. Food Chem Toxicol. 141 Suppl 1: 111380. PMID: 32562754
  3. RIFM fragrance ingredient safety assessment, 9-decenoic acid, CAS Registry Number 14436-32-9.  |  Api, AM., et al. 2020. Food Chem Toxicol. 144 Suppl 1: 111541. PMID: 32640339
  4. Heparinization of gas plasma-modified polystyrene surfaces and the interactions of these surfaces with proteins studied with surface plasmon resonance.  |  van Delden, CJ., et al. 1997. Biomaterials. 18: 845-52. PMID: 9184748

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Undecylenic Acid Sodium Salt, 25 g

sc-296681
25 g
$60.00

Undecylenic Acid Sodium Salt, 100 g

sc-296681A
100 g
$200.00