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  1. info.gbiosciences.com › blog › whats-the-differenceWhat’s the Difference Between Tween 20 and Tween 80? | G ...

    Tween® 20, or Polysorbate 20, is a popular choice for biochemical applications. With a hydrophobic dodecanoic tail, it attached to 20 repeat units of polyethylene glycol and distributed across four different chains. As a non-ionic surfactant, Polysorbate 20 has a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, one sorbitol ...

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  3. www.labome.com › method › Detergents-Triton-X-100Detergents: Triton X-100, Tween-20, and More - labome.com

    May 10, 2023 · Triton X-100, a typical non-ionic detergent, derives from polyoxyethylene and contains an alkylphenyl hydrophobic group. Triton X-100 is commonly used for isolating membrane protein complexes, and the surfactant of choice for most such as for co-immunoprecipitation experiments.

    • Mary Johnson
    • 2013

  4. foodadditives.net › emulsifiers › polysorbate-20What is Tween 20/Polysorbate 20 (E432 ... - FOODADDITIVES

    Apr 23, 2020 · Polysorbate 20 or Tween 20, the abbreviation of “polyoxyethylene (20) sorbitan monolaurate”, is a nonionic surfactant and an emulsifier used much in cosmetics than in food. The European food additive number for it is E432. It is distinguished from other polysorbates due to the shortest length of the fatty acid and the highest HLB value.

    • 9005-64-5
    • 1228
    • C58H114O26
    • Polyoxyethylene (20) sorbitan estersTween 20

  5. www.researchgate.net › post › What-is-the-purpose-ofWhat is the purpose of TWEEN in the blocking buffer?

    May 21, 2015 · Popular answers (1) Low concentrations of TWEEN in the blocking buffer (and often in the buffer for 1st and 2nd antibodies) are used to prevent non-specific protein-protein interactions. The ...

  6. www.drugs.com › inactive › polysorbate-80-372Polysorbate 80: What is it and where is it used? - Drugs.com

    May 9, 2024 · Polysorbate 80 (C64H124O26) is a common excipient and solubilizing agent used in the pharmaceutical industry. Polysorbate 80 (also known as polyoxyethylene-sorbitan-20 mono-oleate, or Tween 80) is used in the pharmaceutical and cosmetic industry in lotions, medical preparations (e.g., vitamin oils, vaccines, and intravenous preparations) and as an excipient in tablets.

  7. www.sciencedirect.com › tween-80Tween 80 - an overview | ScienceDirect Topics

    Tween is a polysorbate nonionic surfactant used in many drug product formulations including parenterals and certain vaccines. They consist primarily of fatty acid esters of polyethoxy sorbitan. Tween 20® and Tween 80 ® (also known as polysorbate 20 and polysorbate 80, respectively) are formulated to contain the ethoxylated oligomers with different fatty acid side chains, ethoxylated sugars and PEG oligomers.

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  9. en.wikipedia.org › wiki › Polysorbate_20Polysorbate 20 - Wikipedia

    Polysorbate 20 (common commercial brand names include Kolliphor PS 20, [2] Scattics, Alkest TW 20, Tween 20, and Kotilen-20) is a polysorbate -type nonionic surfactant formed by the ethoxylation of sorbitan monolaurate. Its stability and relative nontoxicity allows it to be used as a detergent and emulsifier in a number of domestic, scientific ...