Sorbitan tristearate

Sorbitan tristearate (CAS 26658-19-5), also known commercially as E492, is a lipophilic emulsifier derived from sorbitol and stearic acid. It functions primarily as a water-in-oil emulsifier, crystal modifier, and stabilizer across food, cosmetic, and industrial applications. In food manufacturing, E492 controls fat crystal structure in chocolate and compound coatings, preventing bloom and improving texture stability during temperature cycling. Personal care formulators use it to stabilize water-in-oil creams and lotions.

Its low HLB value supports stable emulsion architecture in rich, occlusive formulations. Pharmaceutical manufacturers incorporate it as an emulsifying and suspending agent in topical preparations and oral dosage forms. In plastics processing, it acts as an antistatic agent and lubricant additive, improving surface properties and processing behavior in polyolefin systems. This versatility makes it a staple in various manufacturing sectors.

Sorbitan tristearate is supplied as a cream to tan-colored waxy solid, typically in flake or bead form. Food-grade material is available to E492 specification, while cosmetic and pharmaceutical grades are supplied to meet relevant standards. These grades are manufactured to meet relevant compendial or industry standards. Technical-grade material is also available for polymer and industrial applications, ensuring performance across diverse technical requirements.