

5-bromo-4-chloro-3-indoxyl-beta-D-mannopyranoside by Molecular Depot is a 5-bromo-4-chloro-3-indoxyl-β-D-mannopyranoside, a chromogenic substrate for β-D-mannosidase that yields a blue precipitate on cleavage. The released indoxyl oxidises and dimerises in air to an insoluble indigo dye, so the colour forms as a precipitate where the enzyme is rather than diffusing into the medium. It is used to detect β-D-mannosidase on agar plates and in gels, in glycosidase screening and microbial identification media and in histochemical staining. Each unit contains 2 mg. MBP supplies Molecular Depot carbohydrate reagents to research labs in the United States, Canada and worldwide.