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Catalog Number: (89411-094)
Supplier: Biotium
Description: Tween-20 detergent is commonly used in blocking and washing buffers for Western blotting.


Catalog Number: (80503-492)
Supplier: MilliporeSigma
Description: TWEEN® 20 Detergent is a molecular biology grade, pale yellow liquid that offeres a specific gravity of 1.100 to 1.110 (at 20°C)

Supplier: MilliporeSigma
Description: Span® 85 for synthesis, Sigma-Aldrich®
Supplier: TCI America
Description: CAS Number: 1338-43-8
MDL Number: MFCD00080948
Form: Clear Liquid
Color: Yellow
Flash Point (°C): 113
Specific Gravity (20/20): 0.99
Catalog Number: (80058-558)
Supplier: MilliporeSigma
Description: Dissolving one tablet in 1 liter of deionized water yields 140 mM NaCl, 3 mM KCl, 0.05% TWEEN® 20 Detergent, 10 mM phosphate buffer, pH 7.4 at 25°C.

Catalog Number: (101643-416)
Supplier: Bio-Rad
Description: Tween® 20 (Polysorbate) 10% in aqueous solution

Supplier: MP Biomedicals
Description: Tween 80 is a polyethylene sorbitol ester, non ionic surfactant and an emulsifier derived from polyethoxylated sorbitan and oleic acid.
Supplier: MilliporeSigma
Description: Suitable for use as excipient EMPROVE® exp Ph Eur, JPE, NF
Catalog Number: (90002-212)
Supplier: BD
Description: Difco™ Tween™ 80 Polysorbate 80 is manufactured in an animal origin-free, antibiotic-free facility.

Catalog Number: (101645-278)
Supplier: Bio-Rad
Description: Choose 100% Tween 20 for applications including protein extractions, and blocking and washing of western blots and ELISAs.

Supplier: Promega Corporation
Description: A nonionic detergent used in many molecular biology applications.
Supplier: MP Biomedicals
Description: Tweens® are a series of nonionic surfactants derived from sorbitan esters. They are soluble or dispersible in water but differ widely in organic and oil solubilities. Used as oil-in-water emulsifiers in pharmaceuticals, cosmetics, cleaning compounds, etc.
Tween® 80 has been widely used in biochemical applications including: solubilizing proteins, isolating nuclei from cells in culture selective protein extraction growing of tubercule bacilli, and emulsifying and dispersing substances in medicinal and food products. It has little or no activity as an anti-bacterial agent. It has been shown to have an adverse effect on the antibacterial effect of methyl paraben and related compounds. Non-ionic detergent used for selective protein extraction and isolation of nuclei from mammalian cell lines.
Soluble/miscible in water to give a clear yellow solution; miscible with alcohol, dioxane, and ethyl acetate; practically insoluble in liquid paraffin and fixed oils (such as mineral oil).
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.
Store at Room Temperature (15-30 °C).

Catalog Number: (100487-942)
Supplier: Electron Microscopy Sciences
Description: TWEEN-20® is a non-ionic surfactant with hydrophobic alkyl side chains.

Minority or Woman-Owned Business Enterprise


Catalog Number: (80057-686)
Supplier: MilliporeSigma
Description: Non-ionic detergent used for immunoprecipitation and for the solubilization of membrane-bound proteins. Supplied as a 10% (W/W) solution of PROTEIN GRADE® TWEEN® 80 detergent.

Catalog Number: (100216-360)
Supplier: Teknova
Description: Tween®20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid.

Supplier: Thermo Scientific Chemicals
Description: 1,5-Anhydro-D-sorbitol 97%

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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