Phalloidin-Janelia Fluor 646 is a red fluorescent F-actin probe. Phalloidin-Janelia Fluor 646 is composed of the F-actin probe, Phalloidin, conjugated to Janelia Fluor 646. It is suitable for use in confocal and super-resolution microscopy techniques such as dSTORM. Excitation/emission maximum lambda = 646/664 nm.