Polysorbate 20, molecular biology reagent

Name: Polysorbate 20, molecular biology reagent
SKU: 02194841-CF

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Key features and details

Polysorbate 20

SKU: 02194841-CF

Synonyms

Polysorbate 20; Polyoxyethylene (20) Sorbitan Monolaurate; Glycosperse L-20X; Polyethylene glycol sorbitan monolaurate; Polyoxyethylenesorbitan monolaurate; TWEEN® 20; PEG(20)sorbitan monolaurate

CAS Number:

9005-64-5

Molecular Weight:

522.676 g/mol

MDL Number:

MFCD00165986

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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
Alternate Names	Polysorbate 20; Polyoxyethylene (20) Sorbitan Monolaurate; Glycosperse L-20X; Polyethylene glycol sorbitan monolaurate; Polyoxyethylenesorbitan monolaurate; TWEEN® 20; PEG(20)sorbitan monolaurate
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%.
Base Catalog Number	194841
CAS #	9005-64-5
Critical Micelle Concentration	0.06 mM
Format	Liquid
Grade	Molecular Biology Grade
Molecular Weight	522.676 g/mol
Personal Protective Equipment	Eyeshields, Gloves
Refractive Index	n20/D 1.468(Lit.)
RTECS Number	TR7400000
Solubility	Soluble in <a class="pubchem-internal-link CID-962" href="https://pubchem.ncbi.nlm.nih.gov/compound/water">water</a>, <a class="pubchem-internal-link CID-702" href="https://pubchem.ncbi.nlm.nih.gov/compound/ethanol">ethanol</a>, <a class="pubchem-internal-link CID-887" href="https://pubchem.ncbi.nlm.nih.gov/compound/methanol">methanol</a>, <a class="pubchem-internal-link CID-8857" href="https://pubchem.ncbi.nlm.nih.gov/compound/ethyl%20acetate">ethyl acetate</a> and <a class="pubchem-internal-link CID-31275" href="https://pubchem.ncbi.nlm.nih.gov/compound/dioxane">dioxane</a>. 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.
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.