👉 Tetrabromofluorescein (TBF) is a type of fluorescent dye that is used in medical imaging. It is composed of three bromides and one fluorine atom bonded to a tetrafluoro compound, which gives it the unique property of being able to fluoresce under light. In medical applications, TBF is often used for visualization of blood vessels or other structures within tissues. It can be used as an image contrast agent in imaging studies to enhance the visual presentation