Trypan BlueView larger

Trypan Blue


The Trypan Blue (TB) dye is used for brightfield viability assessment. TB is an azo dye that is excluded from cells with intact cell membranes, only staining non-viable cells. The trypan blue assay is used to assess the number of viable cells present in a cell suspension.

Components : 1.5 ml @ 0.4% in PBS