Description
A solvatochromic fluorescent probe; abs/em = 347/416 nm, respectively, in toluene, with both parameters increasing as solvent polarity increases; emission maximum is also influenced by the phase state of membranes; emission maximum shifts from ~440 nm in the gel phase to ~490 nm in the liquid crystalline phase in DPPC multilamellar vesicles; has been used to probe the microenvironmental conditions of biological and synthetic membranes