Description

Polyoxyethylene Sorbitan Tetraoleate is a nonionic surfactant belonging to the polysorbate family, derived from sorbitol and oleic acid. This versatile compound is valued for its excellent emulsifying, solubilizing, and dispersing properties in a wide range of industrial formulations. It is a critical ingredient for manufacturers in the pharmaceutical, cosmetic, food processing, and agrochemical sectors seeking reliable performance in complex systems.

Application

• Primary emulsifier and solubilizer in pharmaceutical formulations, including oral solutions, injectables, and topical creams.
• Key ingredient in cosmetic and personal care products such as lotions, creams, and makeup for stabilizing oil-in-water emulsions.
• Food-grade emulsifier (where compliant) for use in bakery goods, ice cream, and edible oil blends to improve texture and consistency.
• Dispersing agent and adjuvant in agrochemical formulations like pesticides and herbicides to enhance active ingredient delivery.
• Industrial emulsifier in lubricants, metalworking fluids, and textile processing aids.
• Wetting agent and viscosity modifier in paints, coatings, and ink systems.
• Excipient and stabilizer in diagnostic reagents and biotechnology applications.

Basic Information

Product Name	Polyoxyethylene Sorbitan Tetraoleate
CAS No.	61723-83-9
Molecular Formula	C~64~H~124~O~26~ (Typical, exact formula varies with ethoxylation degree)
Molecular Weight	~1300 g/mol (Approximate)
Synonyms	Polysorbate 85; POE(20) sorbitan tetraoleate; Tween® 85; Sorbitan, poly(oxy-1,2-ethanediyl) derivs., tetra-9-octadecenoate; Ethoxylated sorbitan tetraoleate; Polyoxyethylene (20) sorbitan trioleate (common misnomer); (Z)-Sorbitan mono-9-octadecenoate poly(oxy-1,2-ethanediyl) derivs.
EINECS	262-981-2

Quality Control

Our Polyoxyethylene Sorbitan Tetraoleate is manufactured under a strict quality management system. Production adheres to current Good Manufacturing Practices (cGMP) where applicable, ensuring batch-to-batch consistency and reliability. Products undergo rigorous analytical testing, including assay, identification, and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing purity, physical parameters, and compliance with agreed specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Amber to yellow viscous liquid
Identification (IR)	Conforms
Assay (Saponification Value)	Contact for details
Water Content (KF)	≤ 3.0 %
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	Contact for details
Peroxide Value	≤ 10.0 meq/kg
Heavy Metals (as Pb)	≤ 10 ppm

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