Naphthol AS-D acetate (3-(O-tolylcarbamoyl)naphthalen-2-yl acetate) is used in histological studies as a histochemical substrate for esterase localization[1].
References:
[1].Tsuda T, et al. Chronologic changes of activities of naphthol AS-D acetate esterase and other nonspecific esterases in the mononuclear phagocytes of tuberculous lesions. Am J Pathol. 1979 Nov;97(2):235-46.
















