Sodium stearyl fumarate

Sodium stearyl fumarate (CAS 4070-80-8), commonly abbreviated as SSF, is a pharmaceutical-grade lubricant and flow aid used primarily in solid dosage manufacturing. Also known as sodium monostearyl fumarate and sodium octadecyl fumarate.

Where is Sodium stearyl fumarate used?

• Pharmaceuticals: tablet and capsule lubricant reducing die-wall friction during compression and improving powder flow in high-speed tableting
• Direct compression and roller compaction where magnesium stearate sensitivity or compatibility issues arise with active ingredients
• Food: dough conditioner and anti-sticking agent in starch-based and extruded products
• Personal care: binder and texture modifier in pressed powders and solid cosmetic sticks
• Polymer processing: processing aid and internal lubricant improving melt flow and surface finish in thermoplastic compounds