Sodium lauroyl isethionate

CAS Number
7381-01-3
EC Number
230-949-8

What is Sodium lauroyl isethionate?

Sodium lauroyl isethionate (CAS 7381-01-3), also marketed as Igepon A, is an anionic surfactant derived from lauric acid and isethionic acid.

Where is Sodium lauroyl isethionate used?

  • Bar soap and syndet formulations: dense, stable lather, mild enough for sensitive skin
  • Body washes, facial cleansers and shampoos: foam performance with low irritation
  • Coatings and adhesives: emulsifier and dispersing agent for pigment distribution and aqueous emulsion stability
  • Industrial cleaning: controlled degreasing and foam management in process environments
  • It maintains skin moisture while providing a thorough clean.

Commercial specifications

  • Cosmetic grade: purity aligned with personal care industry standards

Other Names (Synonyms)

Sodium ethyl 2-sulfolaurate|Igepon A|Sodium 2-sulfoethyl laurate|Sodium 2-sulfoethyldodecanoate|Sodium lauryl isethionate|2-Sulfoethyl laurate sodium salt|Dodecanoic acid, 2-sulfoethyl ester, sodium salt

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What are the physical properties of Sodium lauroyl isethionate?

Density 1.21[at 20℃]
Water Solubility 1.29g/L at 20℃
Vapor Pressure 0Pa at 25℃
Log P 0.6 at 22℃
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