T2700

TWEEN^® 20

meets EP testing specifications

• Synonym(s): Polyethylene glycol sorbitan monolaurate, Polyoxyethylenesorbitan monolaurate
• CAS Number: 9005-64-5
• MDL number: MFCD00165986
• UNSPSC Code: 12161900
• NACRES: NA.25

Properties

• agency: meets EP testing specifications
• description: non-ionic
• form: liquid
• mol wt: ~1228
• composition: lauric acid, ≥40% (balance primarily myristic, palmoyic, and stearic acids)
• refractive index: n20/D 1.468 (lit.)
• CMC: 0.059 mM
• transition temp: cloud point 76 °C
• density: 1.095 g/mL at 25 °C (lit.)
• HLB: 16.7
• 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
• InChI key: HMFKFHLTUCJZJO-UHFFFAOYSA-N

Description

General description

TWEEN^® 20, also known as polysorbate 20, is a non-ionic detergent. It reduces the surface tension in solutions and thereby aids in uniform spreading of reagents. Tween 20 has a gentle action on cell lipids, preserves the integrity of cell surface antigens and aids in the staining of intracellular proteins.

Application

TWEEN 20 has been used as a surfactant and has also been used for enzyme extraction.

Non-ionic detergent

Legal Information

TWEEN is a registered trademark of Croda International PLC

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 527.0 °F - Pensky-Martens closed cup
• flash_point_c: 275 °C - Pensky-Martens closed cup
• ppe: Eyeshields, Gloves