P1379

TWEEN^® 20

viscous liquid

• Szinonimák: Polyethylene glycol sorbitan monolaurate, Polyoxyethylenesorbitan monolaurate
• CAS-szám: 9005-64-5
• MDL-szám: MFCD00165986
• UNSPSC kód: 12161900
• NACRES: NA.21

Tulajdonságok

• leírás: non-ionic
• Minőségi szint: 300
• Teszt: >40% (GC)
• form: viscous liquid
• molekulatömeg: ~1228
• összetétel: lauric acid, ≥40% (balance primarily myristic, palmitic, and stearic acids)
• koncentráció: ≥40.0% (GC)
• technika/technikák: DNA extraction: suitable; RNA extraction: suitable; cell culture | mammalian: suitable; protein purification: suitable
• szennyeződések: ≤3.0% water
• törésmutató: n20/D 1.468 (lit.)
• CMC: 0.06 mM (20-25°C)
• savszám: ≤2.2 mg/g
• hidroxil érték: 96‑108 mg/g
• átmeneti hőmérséklet: cloud point 76 °C
• sűrűség: 1.095 g/mL at 25 °C (lit.)
• HLB (hidrofil/lipofil egyensúly): 16.7
• alkalmasság: complies for IR spectroscopy
• SMILES string: CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO
• InChI: 1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3
• Nemzetközi kémiai azonosító kulcs: HMFKFHLTUCJZJO-UHFFFAOYSA-N

Leírás

Általános leírás

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. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.

Tween^® 20 is a nonionic surfactant and detergent widely applied in biochemical and life science research. Its predominant use involves the solubilization of membrane proteins during the isolation of membrane-protein complexes. Moreover, it serves as a component in various washing, blocking, dilution, and stabilization buffers. Additionally, it functions as a reagent for immunohistochemistry, encompassing techniques like Western blotting and ELISAs. In these applications, Tween^® 20 plays crucial roles such as preventing non-specific antibody binding, minimizing background staining, and ensuring the even distribution of reagents.

Surfactants, possessing both hydrophilic and hydrophobic components, fall into two main categories: ionic, which ionize in water (anionic, cationic, or ampholytic), and nonionic, which do not ionize. The discussed product is a nonionic surfactant with diverse applications such as emulsification, dispersion, solubilization, and detergent use. Additionally, it can serve as a solubilizer for membrane proteins.

Alkalmazás

TWEEN 20 has been used as a component of:

• washing buffer and blocking buffer in Western blotting
• blocking buffer in immunohistochemistry
• washing buffer in ELISA (enzyme linked immunosorbent assay)
• reaction mixture in PCR (polymerase chain reaction)

TWEEN 20 is a nonionic detergent widely used in biochemical applications. It has been used as an emulsifying agent for the preparation of stable oil-in-water emulsions. TWEEN 20 has been used in pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins).
TWEEN 20 has been used as a blocking agent for membrane based immunoassays at a typical concentration of 0.05%. TWEEN 20 can be used for lysing mammalian cells at a concentration of 0.005 to 0.5%.

Non-ionic detergent

Tulajdonságok és előnyök

• Highly versatile surfactant for your life science and biochemical research
• Excellent solubilising, dispersing and emulsifying agent
• Suitable for DNA & RNA extraction, mammalian cell culture, and protein purification

Kiszerelés

P1379-1KT:
Each kit contains 3 x 100ML samples, each sample from a uniquely manufactured lot.

Elkészítési megjegyzés

TWEEN 20 is miscible in water (100mg/mL), yielding a clear, yellow solution. It is also miscible with alcohol, dioxane, and ethyl acetate. TWEEN 20 is insoluble in liquid paraffin and fixed oils.

Egyéb megjegyzések

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Jogi információk

TWEEN is a registered trademark of Croda International PLC

Biztonsági adatok

• Tárolási osztály kódja: 10 - Combustible liquids
• WGK: WGK 3
• Lobbanási pont (F): 527.0 °F - Pensky-Martens closed cup
• Lobbanási pont (C): 275 °C - Pensky-Martens closed cup
• Egyéni védőeszköz: Eyeshields, Gloves