Description

Sorbitan Isostearate is a non-ionic surfactant derived from the esterification of sorbitan with isostearic acid. This compound is valued for its excellent emulsifying, dispersing, and solubilizing properties, making it a versatile functional ingredient. It is primarily used in the personal care, cosmetic, and pharmaceutical industries to create stable emulsions and improve product texture.

Application

• Primary emulsifier and co-emulsifier in cosmetic creams, lotions, and ointments.
• Stabilizing agent for water-in-oil (W/O) emulsions in skincare and makeup formulations.
• Used as a dispersant for pigments and powders in color cosmetics.
• Functions as a solubilizer for fragrances and essential oils in aqueous systems.
• Key ingredient in hair care products like conditioners for its lubricating and softening effects.
• Employed in topical pharmaceutical preparations to enhance drug delivery and emulsion stability.
• Acts as a lubricant and processing aid in certain industrial applications.

Basic Information

Product Name	Sorbitan Isostearate
CAS No.	54392-26-6
Molecular Formula	C24H46O6
Molecular Weight	430.62 g/mol
Synonyms	Sorbitan monoisostearate; Isostearic acid, sorbitan ester; Span 120 (trade name); Sorbitan, monoisooctadecanoate; EMSORB 2515; Arlacel 987; (Z)-Sorbitan monoisostearate; Sorbitan fatty acid ester
EINECS	259-140-1

Quality Control

Our Sorbitan Isostearate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the required specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term preservation to maintain stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellowish to amber viscous liquid
Identification (IR)	Conforms
Assay (Sorbitan Esters)	≥ 95.0 %
Acid Value	≤ 10.0 mg KOH/g
Saponification Value	140 - 160 mg KOH/g
Hydroxyl Value	180 - 210 mg KOH/g
Water Content	≤ 1.0 %

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