rhodanile blue

rho·da·nile blue

(rō'dă-nīl blū),
A dye mixture, considered by some to be a salt of rhodamine B and Nile blue, used to stain keratinized epithelium (red) and fibroblasts (blue), as well as spermatozoa and normal and pathologic acidophilic, basophilic, and certain neutrophilic elements of cells and tissues; used as a substitute for hematoxylin and eosin.