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Octadecyl Rhodamine B Chloride is a fluorescent lipophilic cell membrane probe.

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 DOI:10.1021/jp906648q