Product introduction：

Is a non-ionic hydrophilic surfactant. Fatty acid esters, alcohols, ketones and halides were separated and analyzed by gas chromatography on fixed column (maximum operating temperature 160℃, solvent chloroform, methylene chloride, methanol). Diffuser; Wetting agent.

Tween (or polysorbate) is a non-ionic surfactant formed by sorbitol and different higher fatty acids. Smelly, slightly bitter. Generally pale yellow to amber thick liquid, but depending on molecular weight differences vary. Ph: About 6-8(5%)

According to the ester formed by different advanced fatty acids, Tween is divided into 20,40,60,80 and other kinds, according to different needs to choose. Commonly used are Twain 20(Tween-20), Twain 21(Tween-21), Twain 40((Tween-40), Twain 60((Tween-60), Twain 61(T(Tween-61), Twain 80(T(Tween 80), Twain 81(Tween) -81), Tween 85(Tween-85).

Tween 60 is a stearate; Tween 80 is oleate; Tween 20 is a laurate, which is a mixture of polyoxyethylene sorbitan monolaurate and a part of polyoxyethylene double sorbitan monolaurate

Storage conditions: sealed cool and dry store.

Use/Application：

1.Tween and the same type of Triton 100(polyethylene glycol octylphenyl ether) non-ionic detergants can emulsify proteins in biological experiments without destroying the structure of the proteins, and can reduce the destruction of the original interaction between proteins. Ionic detergents such as SDS destroy the protein structure.

2. As a blocking agent in biological experiments, it blocks all unbound sites without replacing the target protein on the membrane, does not bind to the site of the target protein, and does not cross-react with antibodies or detection reagents. Tween-20 has the effect of binding antigen, which can improve the ability of specific recognition. When western blot is done, the non-specific binding of the antibody can be reduced by blocking the unbound site on the membrane with an inert protein or non-ionic stain remover. The most common sealers are BSA, skim milk powder, casein, gelatin, and Tween-20 (0.05-0.1%) dilute solution.

3. Often used as oil-in-water (O/W) emulsifier to disperse other substances evenly in solution, mainly used in pesticides, food, cosmetics. The Twain 20 is a bit milder and the Twain 80 is a bit more emulsifying.

Note：Product information may be optimized and upgraded. Please refer to the actual label information for accuracy.