Oils, Fats & Waxes
REACH
Butyl stearate
CAS Number
123-95-5
EC Number
204-666-5
FEMA Number
FEMA 2214
What is Butyl stearate?
Butyl stearate (CAS 123-95-5), also known as butyl octadecanoate, is a fatty acid ester used in food, cosmetics, and industrial manufacturing.
Where is Butyl stearate used?
- Personal care: emollient and skin-conditioning agent in creams, lotions, and color cosmetics
- Metalworking and industrial lubricants: base or additive in cutting fluids and release agents
- Plastics processing: internal lubricant and plasticizer that reduces melt viscosity and improves flow during extrusion and molding
- Food-grade butyl stearate carries FEMA 2214 status and is used as a flavoring adjuvant and surface lubricant.
Good to know: Food-grade material conforms to relevant purity standards for flavor and food contact.
Commercial specifications
- Bulk supply in drums and IBC containers
Other Names (Synonyms)
N-Butyl stearate|Butyl octadecylate|Butyl octadecanoate|Octadecanoic acid, butyl ester|Kesscoflex BS|Kessco BSC|n-Butyl octadecanoate|Starfol BS-100
What are the physical properties of Butyl stearate?
Melting Point 27 °C
Boiling Point 343 °C
Density 0.854 g/cm³ @ Temp: 25 °C
Flash Point 25 °C
Appearance LOW MELTING SOLID OR LIQUID
Color White or Colorless to Light yellow
Odor at 100.00 %. mild fatty oily
Form Liquid
Water Solubility Immiscible with water. Miscible with ethanol and acetone
Refractive Index n 20/D 1.443
Log P 9.70
Which trade and regulatory codes apply to Butyl stearate?
HS Code 29157080
Storage Class 10 - Combustible liquids
WGK (Germany) 1