Description

Sorbitan Sesquiisostearate is a non-ionic surfactant derived from sorbitol and isostearic acid, functioning as a versatile emulsifier and solubilizer. Its primary value lies in its ability to stabilize oil-in-water (O/W) emulsions and enhance the solubility of lipophilic ingredients in aqueous systems. This makes it a critical component for formulators in the personal care, cosmetics, and pharmaceutical industries seeking to create stable, elegant, and effective products.

Application

• Primary emulsifier and co-emulsifier in cosmetic creams, lotions, and sun care products.
• Solubilizer for fragrances, essential oils, and vitamins in clear gels and aqueous formulations.
• Key ingredient in hair care products like conditioners and styling aids for its conditioning and emulsifying properties.
• Used in pharmaceutical topical preparations (ointments, creams) for drug delivery enhancement.
• Stabilizing agent in industrial applications such as lubricants, textile processing, and agrochemical formulations.
• Functions as a dispersing agent for pigments and powders in color cosmetics and coatings.

Basic Information

Product Name	Sorbitan Sesquiisostearate
CAS No.	71812-38-9
Molecular Formula	C24H46O6 (Approximate, for main component)
Molecular Weight	~430.6 g/mol (Approximate)
Synonyms	Sorbitan Sesquiisostearate; Sorbitan Isostearate (partial); E 495 (when used as a food additive); Span™ SA; Sorbitan, esters with isostearic acid; Anhydrosorbitol sesquiisostearate; Sorbitan polyoxyethylene isostearate (related); HLB ~4-6 (typical)
EINECS	Contact for details

Quality Control

Our Sorbitan Sesquiisostearate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and performance. We provide full traceability and Certificates of Analysis (COA) are available for all shipments. Our quality commitment supports compliance with relevant frameworks for cosmetic (ISO 22716, GMP) and pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and excessive heat to maintain product integrity.

Specification

Item	Specification
Appearance	Yellowish to amber viscous liquid
Identification (IR)	Conforms
Acid Value	≤ 10 mg KOH/g
Saponification Value	Contact for details
Hydroxyl Value	Contact for details
Water Content	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.