Is rhodamine hydrophilic or hydrophobic?

Rhodamine is hydrophilic. Rhodamine is also highly fluorescent and fluoresces a bright color that can be easily detected in very concentrations using simple fluorometers. Because of its hydrophilic nature and strong brightness, rhodamine is widely used as a tracer dye to determine the direction, rate of flow, dilution, and transport of surface, ground, and wastewater.