

Lapis-3-Acetate (Highly Pure) by Molecular Depot is a 5-bromo-3-indolyl acetate, sold under the trade name Lapis-3-Acetate, a non-specific histochemical esterase substrate. An indoxyl ester is cleaved by esterases to release an indoxyl, which oxidises in air to an insoluble indigo dye and so marks the site of the activity in place. It is used to determine esterase activity in histochemical staining, in microbial identification media and in enzyme localisation. Each unit contains 100 mg. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.