Octyl stearate

CAS Number
109-36-4
EC Number
203-666-2

What is Octyl stearate?

Octyl stearate (CAS 109-36-4) is a fatty acid ester produced from stearic acid and octanol.

Where is Octyl stearate used?

  • Personal care: skin-conditioning emollient and solvent carrier for active ingredients in creams, lotions, and color cosmetics
  • Plastics and polymers: internal plasticizer and lubricant
  • Metalworking and industrial lubrication: base fluid or additive component in cutting oils and release agents
  • Coatings and specialty formulations: dispersing medium for pigments and waxes
  • It improves flexibility and processing flow in PVC and similar compounds.

Good to know: Technical and cosmetic grades are the standard commercial offerings; cosmetic-grade material meets purity specifications relevant to personal care manufacturing. Cosmetic-grade lots are typically accompanied by standard quality documentation.

Commercial specifications

  • Bulk supply in drums and intermediate bulk containers

Other Names (Synonyms)

Octyl octadecanoate|Octadecanoic acid, octyl ester|Stearic acid, octyl ester|772Y4UFC8B|n-octyl stearate|AI3-31618|NJLUB OS

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What are the physical properties of Octyl stearate?

Melting Point 43-44 °C
Boiling Point 438.7±13.0 °C(Predicted)
Density 0.860±0.06 g/cm3(Predicted)
Log P 11.994 (est)
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