Geranyl monophosphate lithium salt is primarily used in biochemical research and enzymatic studies. It serves as a substrate or intermediate in the biosynthesis of terpenes and terpenoids, which are crucial for producing essential oils, fragrances, and flavors. In laboratory settings, it is employed to investigate the mechanisms of prenyltransferases and other enzymes involved in isoprenoid pathways. Additionally, it is utilized in synthetic biology to engineer metabolic pathways for the production of high-value terpenoid compounds in microorganisms. Its lithium salt form enhances solubility, making it more suitable for in vitro experiments and assays.