BDP 581 591 azide, an azide derivative of the universal, photostable fluorophore BDP 581 591, can be used for conjugation with small molecules and biomolecules to construct tracers for fluorescence polarization assays and microscopy probes [1].
4-Di-2-ASP, a styryl pyridinium fluorescent dye, serves as an essential mitochondrial marker. It effectively and specifically labels pulmonary NEBs (neuroepithelial bodies) [1].