Description

Tween 80 is a high-purity, non-ionic surfactant and emulsifier belonging to the polysorbate family, with the CAS registry number 9005-65-6. This versatile compound is essential for stabilizing formulations, enhancing solubility, and improving bioavailability across a wide range of industrial and consumer applications. It is a critical ingredient for manufacturers in the pharmaceutical, food and beverage, cosmetic, and biotechnology sectors seeking reliable and compliant raw materials.

Application

• Pharmaceutical Formulations: Widely used as a solubilizer and emulsifying agent in oral, topical, and parenteral drug products, including vaccines, syrups, and creams.
• Food & Beverage Industry: Functions as an emulsifier and dispersant in ice cream, baked goods, dairy products, and flavoring oils to ensure texture and stability.
• Cosmetics & Personal Care: Serves as a key surfactant and emulsifier in lotions, creams, shampoos, and other products for smooth texture and consistent formulation.
• Biotechnology & Cell Culture: Used in cell culture media as a stabilizing agent and to prevent cell clumping.
• Industrial Applications: Acts as an emulsifier, lubricant, and antistatic agent in textile processing, agrochemicals, and polymer production.
• Laboratory Research: Employed as a detergent in biochemical assays, protein purification, and membrane studies.

Basic Information

Product Name	Tween 80
CAS No.	9005-65-6
Molecular Formula	C64H124O26 (for the main component)
Molecular Weight	~1310 g/mol (Average)
Synonyms	Polysorbate 80; Polyoxyethylene (20) sorbitan monooleate; Sorbitan mono-9-octadecenoate poly(oxy-1,2-ethanediyl) derivs.; (Z)-Monooctadec-9-enoic acid sorbitan ester ethoxylate; E433; Tween® 80; Sorbimacrogol oleate 300; Oleic acid ester with sorbitol anhydrides, ethoxylated.
EINECS	220-044-3

Quality Control

Our Tween 80 is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP-NF, Ph. Eur., JP, and FCC for food applications. Every batch undergoes rigorous analytical testing to ensure identity, purity, and performance specifications are met. A comprehensive Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). The product is hygroscopic; keep the container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Description	Clear, viscous yellow to amber liquid
Identification (IR)	Conforms
Assay (Oxyethylene Content)	65.0% - 69.5%
Water Content (KF)	≤ 3.0 %
Residue on Ignition	≤ 0.25 %
Heavy Metals	≤ 10 ppm
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	45 - 55 mg KOH/g
Hydroxyl Value	65 - 80 mg KOH/g
Peroxide Value	≤ 10 meq/kg

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