Octadecyl Rhodamine B chloride is a cationic amphiphile that can be used for staining cell membranes. Octadecyl Rhodamine B chloride can be used in numerous studies including electronic energy transfer in organized molecular assemblies, membrane structure, and distances of closest approach between protein domains and membranes[1].
[1]. Tione Buranda, et al. Real-time partitioning of octadecyl rhodamine B into bead-supported lipid bilayer membranes revealing quantitative differences in saturable binding sites in DOPC and 1:1:1 DOPC/SM/cholesterol membranes. J Phys Chem B. 2010 Jan 28;114