NQTrp is primarily utilized in biochemical research as a photosensitizer in photodynamic therapy (PDT) studies. Its ability to generate reactive oxygen species (ROS) upon light activation makes it effective in targeting and destroying cancer cells. Additionally, NQTrp is explored for its potential in studying oxidative stress mechanisms in cellular systems, aiding in understanding diseases related to oxidative damage. Its unique structure also allows it to be used in the development of novel therapeutic agents and in the investigation of protein interactions and signaling pathways.