When mordanted with iron alum, gallocyanin makes a useful nuclear stain, suitable as an alum hematoxylin substitute in H&E. Einarson used it with chrome alum to demonstrate nucleic acids.
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.
Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA.