Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between reagents in different phases by transferring ions into organic solvents. Commonly applied in alkylation reactions, esterifications, and nucleophilic substitutions due to its ability to enhance reaction rates and yields. Also serves as a mild surfactant in laboratory settings for dispersion and emulsification processes, including in the synthesis of nanomaterials such as mesoporous silica, where it helps control pore shape and size. Its pyridinium structure provides stability and solubility control in various solvent systems, making it useful in fine chemical and pharmaceutical intermediate production. Additionally, it exhibits antibacterial properties, suitable for use in laboratory cleaning products or disinfectants, and can assist in the extraction of certain biomolecules.