Difluoro{2-(1-(3,5-dimethyl-2H-pyrrol-2-ylidene-N)ethyl)-3,5-dimethyl-1H-pyrrolato-N}boron is an organoboron composed of dipyrromethene with a boron in the center. It is a fluorescent dye with a high quantum yield and an ability to absorb small molecules with sharp peaks in the ultraviolet region.

BODIPY can be infused in silicon oil to impart fluorescence which can be used in light microscopy for cell sheets. It can be used in labelling of mouse pre-adipocyte 3t3-L1 cells. It may also be used in combination with bipyridine copper based complex which can be used in the sensing of nitrogen oxide(NOx) in air and living cells.

BODIPY laser dyes are used to generate fluorescent conjugates of proteins, nucleotides, oligonucleotides and dextrans, and to prepare fluorescent enzyme substrates, fatty acids, phospholipids, lipopolysaccharides, receptor ligands and polystyrene microspheres.
Also used for solid-state dye laser devices and organic solar cells.