Acridine Red 3B
This dye is not commonly used. It has been suggested for staining RNA in conjunction with malachite green in the Hitchcock Ehrich method for plasma cells, a method analogous to the unna-Pappenheim technique, which uses the closely related dye pyronin Y or pyronin B.
Compare the formula with other pyronins.
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.