1-Pyrenesulfonic acid sodium salt (CAS 59323-54-5)

1-Pyrenesulfonic acid sodium salt (CAS: 59323-54-5) is a chemically modified derivative of pyrene, a polycyclic aromatic hydrocarbon known for its robust fluorescence properties. This compound features a sulfonic acid group attached to the pyrene ring, which is further neutralized to its sodium salt form, enhancing its water solubility compared to the parent hydrocarbon. The inclusion of the sulfonic acid group significantly alters the physicochemical properties of pyrene, particularly its solubility and ionic character, making it more amenable for use in aqueous environments. The primary mechanism of action of 1-pyrenesulfonic acid sodium salt lies in its ability to act as a fluorescent probe due to the inherent fluorescent characteristics of the pyrene moiety. Upon excitation, typically with UV light, the compound exhibits a strong and distinctive fluorescence emission, which can be utilized to trace the distribution and interaction of the molecule within various systems. Researchers have employed this compound extensively in environmental and material science studies, particularly for tracing organic pollutants in water systems due to its high sensitivity and specificity for hydrophobic compounds. Additionally, it has been used in the study of micellar systems and the formation of polymer films, where its fluorescence properties enable detailed analysis of molecular interactions and dynamics within these complex systems.