Pararosaniline hydrochloride has been used to prepare Schiff reagent to stain cow endometrial cytology samples to counterstain Prussian blue sections of mice brains.

For R&D use onlynot for drug household or other uses.

Pararosaniline is a cationic triarylmethane dye and one of the components of basic fuchsin. It gives a brilliant red color after dyeing polyacrylonitrile fibers.