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Specifications:
| Application | molecular biology | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Liquid |
| Product Brand | VWR | ||
| Product Grade | Laboratory grade | Formula | C₅₈H₁₁₄O₂₆ |
VWR® Polysorbate 20 (Tween 20) is a high-purity nonionic surfactant, supplied under the GPR RECTAPUR® grade, ensuring consistent quality and performance for analytical, pharmaceutical, biochemical, and industrial applications.
Polysorbate 20 is derived from sorbitol, ethylene oxide, and lauric acid, and is widely used as an emulsifier, dispersing agent, and solubilizer in aqueous and organic systems. Its excellent surfactant properties make it essential in protein stabilization, enzyme assays, cosmetics, pharmaceuticals, and food testing.
Key Features
- High Purity GPR RECTAPUR® Grade – reliable for analytical and laboratory use.
- Excellent Surfactant Properties – emulsifier, dispersant, and solubilizer.
- Stable Physical Properties – controlled hydroxyl (96–113) and saponification (40–51) values.
- Broad Application Range – from life sciences and pharmaceuticals to cosmetics and industry.
- Convenient Packaging – available in multiple volumes (100 mL, 500 mL, 1 L).
Applications
- Biochemistry & Molecular Biology: Stabilization of enzymes, proteins, and antibodies.
- Pharmaceuticals: Solubilizing and emulsifying agent in drug formulations.
- Analytical Chemistry: Common additive in ELISA, Western blotting, and immunoassays.
- Cosmetics & Personal Care: Used in creams, lotions, and shampoos for emulsification.
- Food & Beverage: Emulsifier and dispersant in food analysis and product formulations.
Specifications
| Property | Details |
|---|---|
| Assay / Grade | GPR RECTAPUR® |
| CAS Number | 9005-64-5 |
| Formula | C₅₈H₁₁₄O₂₆ |
| Density (20 °C) | 1.095–1.105 g/cm³ |
| Flash Point | 149 °C (closed cup) |
| Appearance | Yellow to brown-yellow liquid |
| Hydroxyl Value | 96–113 |
| Saponification Value | 40–51 |
| IR Spectrum | Passes test |
| Storage Temperature | Ambient |
Packaging & Ordering Information
| Catalog Number | Description | Pack Size | Container |
|---|---|---|---|
| 66368.180 | VWR® Polysorbate 20, GPR RECTAPUR® | 100 mL | Glass bottle |
| 663684B | VWR® Polysorbate 20, GPR RECTAPUR® | 500 mL | Glass bottle |
| 66368.290 | VWR® Polysorbate 20, GPR RECTAPUR® | 1 L | Plastic container |
Safety Information
- Hazards: Low acute toxicity; may cause irritation on prolonged skin or eye contact.
- Precautions: Handle with standard laboratory PPE (gloves, goggles, lab coat). Store at ambient conditions away from strong oxidizing agents.
VWR® Polysorbate 20, GPR RECTAPUR® is a versatile, high-purity nonionic surfactant used across analytical, biochemical, pharmaceutical, cosmetic, and industrial fields. Its excellent emulsifying and solubilizing properties, combined with strict impurity controls, make it an essential laboratory and process reagent.
- Pack Size: 1L 100 mL 500 mL