Yes, all of our CytoTell® reagents are fixable. Cells labeled with CytoTell® reagents may be fixed and permeabilized for analysis of intracellular targets using standard formaldehyde-containing fixatives and saponin-based permeabilization buffers.

Of the CytoTell® reagents, CytoTell® Orange (Cat# 22257 and 22258), is only fixable for up to 5 hours.