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viscous liquid

POE (20) sorbitan monooleate, Polyoxyethylenesorbitan monooleate, Polyethylene glycol sorbitan monooleate, Polysorbate 80
Número de CAS:
Número MDL:

Nivel de calidad





viscous liquid

mol peso

micellar avg mol wt 79,000
average mol wt 1310


Oleic acid, ≥58.0% (balance primarily linoleic, palmitic, and stearic acids)

número de agregación



0.012 mM (20-25°C)

temperatura de transición

cloud point 65 °C


1.064 g/cm3




cell analysis



InChI key


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TWEEN® 80 has been used in drug vehicle solution for specific injections in mice and rats. It has been used for the determination of esterase activity in bacterial cells.
Non-ionic detergent used for selective protein extraction and isolation of nuclei from mammalian cell lines.


1 L in poly bottle
25, 500 mL in poly bottle
1 gal in poly bottle

Acciones bioquímicas o fisiológicas

TWEEN® 80 is a polysorbate surfactant which helps in stabilizing proteins and in protein membrane studies. It is regularly used for the extraction of membrane proteins and isolation of nuclei from cells.

Información legal

TWEEN is a registered trademark of Croda International PLC

Código de clase de almacenamiento

10 - Combustible liquids



Punto de inflamabilidad F

235.4 °F - closed cup

Punto de inflamabilidad C

> 113 °C - closed cup

Equipo de protección personal

Eyeshields, Gloves

Certificado de Análisis

Introduzca el número de lote para buscar un certificado de análisis (COA).

Certificado de origen

Introduzca el número de lote para buscar un Certificado de origen (COO).

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the Critical Micelle Concentration (CMC) of Product P1754, TWEEN® 80?

    The CMC value is 13-15 mg/Liter. 

  4. Is Product P1754, TWEEN® 80, sterile?

    The product is not sterile. Autoclaving a solution of TWEEN 80 is generally not advised. Sterile filtration is more easily done if the liquid is warmed to about 40°C and alternate portions of hot distilled water and TWEEN 80 are poured through the 0.22 μm filter. The TWEEN 80 will blend and remain in solution.

  5. Is Product P1754, TWEEN® 80, cell culture tested?

    No, P1754 is not cell culture tested, but product P4780 is cell culture tested TWEEN 80.

  6. Is Product P1754, TWEEN® 80, tested for RNase and DNase activity?

    No. Product P1754 is not tested for contaminating RNase and DNase activity.  Product P5188 is a Molecular Biology grade product that has been tested for DNase and RNase.

  7. Is it normal for the color of Product P1754, TWEEN® 80, to change from lot to lot?

    Yes. According to Sigma-Aldrich's specifications, Product No. P1754 can appear bright yellow to yellow with a green cast.  Please see our Specification Sheet for more information.

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

HU-210 shows higher efficacy and potency than morphine after intrathecal administration in the mouse formalin test.
Guhring H et al.
European Journal of Pharmacology, 429, 127-127 (2001)
Pathogenic factors of Pseudomonas cepacia isolates from patients with cystic fibrosis.
Gessner AR and Mortensen JE
Journal of Medical Microbiology, 33, 115-115 (1990)
Scopes RK
Protein Purification: Principles and Practice (1993)
Zandra Gerdes et al.
PloS one, 14(2), e0205378-e0205378 (2019-02-20)
The role of microplastic (MP) as a carrier of persistent organic pollutants (POPs) to aquatic organisms has been a topic of debate. However, the reverse POP transport can occur if relative contaminant concentrations are higher in the organism than in
Handbook of Biochemistry and Molecular Biology (2010)

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