Rhodamine is a synthetic dye commonly used in various applications, including textiles, inks, and biological research. It is known for its vibrant pink to red color and is often used as a fluorescent marker in microscopy and flow cytometry. In addition to its use in laboratories, rhodamine can also serve as a tracer in environmental studies to track water movement. Its chemical structure allows it to bind to specific molecules, making it useful for studying cellular processes and detecting certain substances in scientific experiments.