Sorbitan sesquioleate

Sorbitan sesquioleate (CAS 8007-43-0), commercially known as Arlacel C, Sorgen 30, and Span 83, is a lipophilic emulsifier derived from sorbitol and oleic acid. It functions as a water-in-oil emulsifier and dispersing agent across food, pharmaceutical, and personal care manufacturing. In cosmetics and topical formulations, it stabilizes water-in-oil creams and lotions, helping formulators achieve smooth texture and consistent droplet distribution. Pharmaceutical manufacturers use it to prepare stable ointments and dermal delivery systems.

In these medical applications, it is utilized where controlled moisture retention is required. In food processing, it supports fat-based emulsions and acts as a dispersing agent in confectionery coatings and chocolate products. Industrial personal care producers also incorporate it into sunscreen and color cosmetic bases where oil-phase compatibility is critical. This versatility makes it a staple ingredient for stabilizing complex multi-phase systems.

Sorbitan sesquioleate is supplied as an amber to yellow viscous liquid. It is available in cosmetic-grade and food-grade specifications, with food-grade material conforming to relevant purity standards for emulsifier applications. Pharmaceutical-grade supply conforming to BP or Ph. Eur. monographs is available from select manufacturers for regulated formulation use. These high-purity standards ensure safety and efficacy in sensitive applications.