5g Rhodamine B Fluorescent Dye Powder 99% Purity

Rhodamine B is a xanthene fluorescent dye supplied as a 5 g lot of 99% purity powder. It dissolves readily in water and in many organic solvents, giving a deep pink to red solution that fluoresces strongly under ultraviolet light and retains color well.

It is used as a fluorescent tracer for water flow and leak detection, as a stain and counterstain in fluorescence microscopy and biological work, as a laser dye, and as a colorant in textile dyeing and pigment formulation. Its visibility at low concentration also makes it common in teaching laboratories.