Stearic monoethanolamide

Stearic monoethanolamide (CAS 111-57-9), also known as stearoyl ethanolamide or stearoyl-EA, is a fatty acid amide derived from stearic acid and ethanolamine.

Where is Stearic monoethanolamide used?

• Personal care and pharmaceuticals: rheology modifier, emulsifier and moisturizing agent
• Cosmetics: thickens creams, lotions and hair conditioners, contributing a smooth, non-greasy skin feel
• Oil-in-water systems: co-emulsifier
• Solid bar soap and syndet bars: improves hardness, lather structure and skin conditioning
• Pharmaceutical topicals: supports emulsion stability and acts as a co-emulsifier in dermal delivery systems
• Leave-on hair treatments: film-forming character aids moisture retention and improves manageability

Good to know: Controlled viscosity is critical in these applications to ensure consistent application.

Commercial specifications

• Minimum purity grades and packaging formats vary by supplier
• Bulk quantities for industrial-scale formulators and manufacturers