5-ROX（5-羧基-X-罗丹明，三乙基铵盐），单异构体

Rhodamine is a generic term for a wide variety of cationic dyes whose fluorescence emission can range from green, orange to red. The table below lists the excitation and emission maxima (nm), as well as molar extinction coefficients (“EC”; cm^-1 M^-1), for various rhodamine dyes (data derived with dye dissolved in methanol).