Used as a non-radioactive label in molecular biology for detecting DNA, RNA, or proteins in techniques like in situ hybridization, ELISA, and immunohistochemistry. Its high affinity for anti-digoxigenin antibodies allows precise targeting and visualization of nucleic acids or other biomolecules. Commonly applied in developmental biology and genetic research to study gene expression patterns in tissues and cells. Also utilized in diagnostic assays where sensitive and specific detection is required without the hazards of radioactivity.