Used as a stable source of malondialdehyde (MDA) in organic synthesis, particularly in condensation reactions such as the preparation of heterocyclic compounds and fluorescent dyes. Commonly employed in the synthesis of thiobarbituric acid reactive substances (TBARS) for analytical detection of lipid peroxidation in biological samples. Its quaternary ammonium salt structure enhances solubility in organic solvents, making it suitable for reactions under non-aqueous conditions. Also utilized in polymer chemistry as a cross-linking agent or building block for functional materials.