Pyronin Y is a cationic dye that intercalates RNA and is visible as a red band during electrophoresis. It has also been shown to accumulate in mitochondria of viable cells. In conjuction with Methyl Green or Nancy-520, Pyronin Y can be used as a fluorescent differential stain of nucleic acids in paraffin tissue sections.
Bo Li; Ying Wu; Xiao-Ming Gao. Pyronin Y as a fluorescent stain for paraffin sections. The Histochemical Journal. 2002, 34,(6-7), 299-303.
Laura M.Andrews; Mark R.Jones; Michelle A.Digman; Enrico Gratton. Spectral phasor analysis of Pyronin Y labeled RNA microenvironments in living cells. Biomed Opt Express. 2013, 4,(1), 171-177.