DSPE-PEG-FITC, MW 5K is one of Ponsure fluorescent phospholipid PEG derivatives that can be used for lipid nanoparticle formulation, tracking and detection. DSPE (1,2-distearoyl-sn-glycero-3-phosphoethanolamine) is an 18 carbon saturated phospholipid that is highly hydrophobic.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.