1-Naphthyl acetate may be used in a rapid staining method for identification of macrophages; counts by this method were confirmed by the more complex morphological criteria, by phagocytosis, and by the presence of Fc receptors.It may be employed as substrate to investigate the distribution of non-specific carboxylic esterases (EC 3.1.1) in the digestive tract of perch,Perm fliiviatilisL.
