Vinylsulfone PEG fluorescein, VS-PEG-FITC
Vinylsulfone (VS) functionalized polyethylene glycol (VS PEG) is a thiol (-SH) group reactive PEG derivative that can be used to modify biomolecules or other materials via their available thiol groups. VS group react with free thiol groups easily in aqueous buffer between pH 6.5~8.5 at room temperature.
- Orange/yellowsolid or viscous liquid depends on molecule weight;
- Soluble in regular aqeous solution as well as most organic solvents;
- Store at -20 0C, desiccated Protect from light. Avoid frequent thaw and freeze.