

X-Gal (Highly Pure) by Molecular Depot is a X-Gal, a chromogenic substrate for β-galactosidase used to detect lacZ activity. Cleavage releases an indoxyl that dimerizes and oxidizes to an insoluble blue indigo dye. It is used in blue-white colony screening, in lacZ reporter staining of cells and tissue and in beta-galactosidase histochemistry. Each unit contains 100 mg. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.