CF640R phalloidin conjugate is the mushroom toxin phalloidin labeled with our superior deep red fluorescent dye CF640R. The conjugate is useful for staining F-actin. CF640R absorbs at 642 nm and emits at 662 nm. The dye is spectrally similar to Cy?5 and Alexa Fluor? 647 but with brighter fluorescence and better photostability. See the CF640R dye flyer for more information.