TG 100572 Hydrochloride is primarily used in research settings as a potent and selective inhibitor of phosphoinositide 3-kinase (PI3K) and mammalian target of rapamycin (mTOR) pathways. These pathways are crucial in cell growth, proliferation, and survival, making this compound valuable for studying cancer biology. Researchers utilize it to investigate the role of PI3K/mTOR signaling in tumor development and progression, aiding in the identification of potential therapeutic targets. Additionally, it is employed in preclinical studies to evaluate the efficacy of PI3K/mTOR inhibition in various cancer models, contributing to the development of novel anticancer strategies. Its specificity and potency make it a useful tool for understanding cellular mechanisms and drug discovery efforts.