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Tween 20
(Polysorbate 20; PEG(20)sorbitan monolaurate; Polyoxyethylene (20) sorbitan monolaurate; Alkest TW 20)
| CAS Number: |
9005-64-5
|
| Chemical Formula: |
C58H114O26
|
| Molecular Weight: | 1227.54 g/mol |
Tween 20 is commonly used as a detergent with applications as a washing agent in immunoassays such as in western blotting and ELISAs. The reason is to help non-specific antibody interactions and used at concentrations of 0.05% to 0.5% v/v. Tween 20 is also used for cell lysis, protein extraction and to solubilize membrane proteins.
Tween 20 at elevated temperatures is not recommended including autoclaving.
DNase, Protease and RNase Free
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Celebrity Endorsements
Lin, C.Y., et al. (2010) Colorimetric Sensing of Silver (I) and Mercury (II) Ions Based on an Assembly of Tween 20-Stabilized Gold Nanoparticles. Anal. Chem., 82 (16), 6830–6837.
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