Nuclear Fast Red, Carrier-free

Nuclear Fast Red is an optimized nuclear counterstain solution that produces an intense nuclear stain. It is an anionic dye used in conjunction with an aluminium salt as a mordant. In contrast to hematoxylin, Nuclear Fast Red is a rapid staining procedure, which requires only step and stains nucleus in five minutes. It is an excellent alternative in multiple labeling when hematoxylin would otherwise obscure the substrate colors.