Used as a photosensitizer in photodynamic therapy due to its strong absorption in the visible light range and ability to generate reactive oxygen species.

Acts as a ligand in coordination chemistry for forming metalloporphyrin complexes with catalytic activity, particularly in oxidation reactions and electron transfer. The porphyrin structure enables tight metal binding, while the imidazole groups enhance solubility in polar solvents and overall stability.

Employed in dye-sensitized solar cells to enhance light harvesting and electron transfer.

Applied in fluorescence imaging and sensing because of its high quantum yield and selective binding properties. Also used in developing sensors for gases or biomolecules, showing color or fluorescence changes upon target binding.

Investigated for use in artificial photosynthesis systems for water splitting and CO₂ reduction.

In biochemistry, utilized to study the mimicry of porphyrin-based enzymes, such as cytochrome P450.