Polysorbate 20, molecular biology reagent

Key Features and Details

Polysorbate 20

SYNONYMS: Polysorbate 20; Polyoxyethylene (20) Sorbitan Monolaurate; Glycosperse L-20X; Polyethylene glycol sorbitan monolaurate; Polyoxyethylenesorbitan monolaurate; TWEEN® 20; PEG(20)sorbitan monolaurate
CAS: # 9005-64-5
MOLECULAR WEIGHT: 522.676 g/mol
MDL No: MFCD00165986
SKU 02194841-CF Categories , , Tag

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PRODUCT DESCRIPTION

Polysorbate 20 Application Notes Polysorbate 20 is typically used as an emulsifying agent for the preparation of stable oil-in-water emulsions, particularly in pharmaceutical applications. It has been used in pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins). It has been used as a blocking agent on nitrocellulose at a typical concentration of 0.05%. Usage Statement Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department. Key Applications Non-ionic detergent | Emulsifying agent | Blocking agent
SPECIFICATIONS
SKU: 02194841-CF
Base Catalog Number: 194841
Alternate Names: Polysorbate 20; Polyoxyethylene (20) Sorbitan Monolaurate; Glycosperse L-20X; Polyethylene glycol sorbitan monolaurate; Polyoxyethylenesorbitan monolaurate; TWEEN® 20; PEG(20)sorbitan monolaurate
CAS : # 9005-64-5
Critical Micelle Concentration : 0.06 mM
Format : Liquid
Grade : Molecular Biology
MDL No : MFCD00165986
Molecular Weight : 522.676 g/mol
PPE : Eyeshields, Gloves
Refractive Index : n20/D 1.468(Lit.)
RTECS No : TR7400000
Solubility : Soluble in water, ethanol, methanol, ethyl acetate and dioxane. Insoluble in mineral oil and petroleum ether
Specific Gravity : 1.08 - 1.13
Sterilization of Solutions : Autoclaving of solutions is not recommended. Sterile filtering is suggested with a 0.22 micron filter. Tween® may need to be warmed to about 40 °C and alternated with portions of hot distilled water while being poured through the filter.
Typical Working Concentration : As a blocking agent on nitrocellulose at a typical concentration of 0.05%. Used at concentration of 2% for extraction of membrane-bound proteins.

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