Product Description: Pentacarboxylporphyrin I dihydrochloride is an organic compound belonging to the family of porphyrin derivatives. It is commonly used in biochemical research as a reference standard for the quantification of porphyrins and related compounds in biological samples. Pentacarboxylporphyrin I dihydrochloride has several applications in the diagnosis and monitoring of porphyrias, a group of inherited disorders characterized by abnormalities in heme metabolism. In addition, it can be used as a photosensitizer in photodynamic therapy for the improvement of cancer and other diseases.