FeTCPP chloride (Iron(III) meso-Tetra(4-carboxyphenyl)porphine chloride) is a metalloporphyrin compound characterized by a central iron ion (Fe3+) coordinated with four 4-carboxyphenylporphine (TCPP) ligands. It serves as a catalyst in catalysis, electrochemical, photochemical, and biomedical research. Under visible light, FeTCPP chloride exhibits high photocatalytic efficiency towards p-nitrophenol. Additionally, it possesses peroxidase-like activity, making it useful in biomimetic catalysis studies.