Used primarily in histopathology and clinical diagnostics, this chemical preserves the structural integrity of biological tissues during specimen preparation. It stabilizes proteins and nucleic acids, preventing degradation from autolysis and putrefaction. Commonly applied after tissue collection to maintain cellular morphology for microscopic examination. Enables accurate diagnosis of diseases such as cancer by ensuring tissue architecture remains intact through processing, embedding, sectioning, and staining. Also supports long-term storage of samples for retrospective studies and research. Widely used in both routine laboratory practice and advanced biomedical research.