Stearyl stearate

CAS Number
2778-96-3
EC Number
220-476-5

What is Stearyl stearate?

Stearyl stearate (CAS 2778-96-3), also known as octadecyl stearate, is a waxy ester derived from stearic acid and stearyl alcohol.

Where is Stearyl stearate used?

  • Personal care: structure builder, spreadability and skin-feel modifier in lipsticks, creams and solid emulsions
  • Polymer and rubber: internal or external lubricant reducing melt viscosity and die buildup in extrusion and calendering
  • Metalworking: solid lubricant in greases and release agents
  • Textile and leather finishing: softening agent for hand feel and surface slip
  • It functions as a lubricant, plasticizer and consistency agent.

Commercial specifications

  • Cosmetic-grade material meets purity requirements for personal care formulations.

Other Names (Synonyms)

Octadecyl stearate|Octadecanoic acid, octadecyl ester|Stearic acid, stearyl ester|octadecanyl octadecanoate|5WX2EGD0DK|Stearic acid octadecyl ester|Octadecyl octadecanoate

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What are the physical properties of Stearyl stearate?

Melting Point 63 °C
Boiling Point 549.1±18.0 °C(Predicted)
Density 0.857±0.06 g/cm3(Predicted)
Flash Point -4°C
Appearance white powder or platelets
Color White
Form Powder or Platelets
Water Solubility 0ng/L at 25℃
Vapor Pressure 0Pa at 25℃
Log P 17.09

Which trade and regulatory codes apply to Stearyl stearate?

HS Code 29157090
Storage Class 11 - Combustible Solids
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