Hematoporphyrin
Hematoporphyrin is a dicarboxylic acid that is protoporphyrin in which the vinyl groups at positions 7 and 12 are replaced by 1-hydroxyethyl groups. It has a role as a photosensitizing agent. It is a member of protoporphyrins and a dicarboxylic acid. It is functionally related to a protoporphyrin.