CellTrace™ calcein violet AM is an optimal dye for distinguishing live cells through the presence of ubiquitous intracellular esterase activity. The enzymatic conversion of the virtually non-fluorescent cell-permeant calcein violet AM to the intensely fluorescent calcein violet (ex/em 400/452 nm) can be easily detected with the violet laser, allowing other laser lines to be used for conventional fluorochromes.

View a selection guide for all Nonfixable Viability Dyes for Flow Cytometry.