Carboxy pyridostatin trifluoroacetate salt is primarily used in biochemical research applications, particularly in the study of G-quadruplex structures in DNA. It is employed as a stabilizing agent for these structures, which are involved in regulating gene expression and maintaining genomic stability. Researchers utilize it to investigate its potential in targeting G-quadruplexes in cancer cells, as these structures are often overexpressed in oncogenes. Additionally, it is used in drug discovery and development to explore its therapeutic potential in diseases where G-quadruplexes play a critical role. Its ability to selectively bind and stabilize these structures makes it a valuable tool in understanding cellular mechanisms and designing novel treatments.