FlAsH-EDT2 is widely used in bioimaging and molecular biology for labeling and tracking proteins in live cells. It specifically binds to tetracysteine motifs engineered into proteins, enabling researchers to visualize protein localization, dynamics, and interactions in real time. This tool is particularly valuable for studying cellular processes such as protein trafficking, organelle dynamics, and signal transduction pathways. Its ability to fluoresce upon binding makes it a powerful probe for high-resolution imaging techniques, including fluorescence microscopy and super-resolution imaging. Additionally, FlAsH-EDT2 is used in drug discovery and development to monitor the effects of compounds on protein behavior within living systems.