This chemical is widely used in molecular biology research as a thymidine analog for labeling DNA. It is incorporated into newly synthesized DNA during replication, allowing researchers to track cell proliferation and study DNA synthesis processes. The bromine atom in its structure makes it detectable using specific antibodies or fluorescence techniques, enabling visualization of dividing cells in vitro and in vivo. It is also employed in techniques like DNA sequencing, mutagenesis studies, and apoptosis assays. Additionally, it serves as a tool in cancer research to monitor tumor growth and evaluate the effects of anti-cancer therapies on cell division.