| TWEEN 80 is a polysorbate surfactant which helps in stabilizing proteins and in protein membrane studies. It is regularly used for the extraction of membrane proteins and isolation of nuclei from cells. Synonyms: POE (20) sorbitan monooleate, Polyethylene glycol sorbitan monooleate, Polyoxyethylenesorbitan monooleate, Polysorbate 80 CAS No: 9005-65-6 Molecular Weight: 1309.68 Appearance: Yellow-golden yellow, viscous liquid Hydroxyl Number: 65-80 KOH/g Specific Gravity: 1.06-1.09 Refractive Index: 1.472 Water (KF): 3% Viscosity: 300-500cS Polyoxyethylene: 65-70% Saponification Value: 45-55 1,4 Dioxane: 0.0001% Heavy Metals: 0.001% Residue on Ignition: 0.25% RNase, DNase, Protease: None Detected Storage and Stability: Store at RT. Stable for 12 months after receipt. |
