Term Name:	protoporphyrin
Synonyms:	3,3'-(3,7,12,17-tetramethyl-8,13-divinyl-21H,23H-porphine-2,18-diyl)-bis-propionic acid, 3,7,12,17-tetramethyl-8,13-divinylporphyrin-2,18-dipropanoic acid, 7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoic acid, H2ppIX, Kammerer's prophyrin, ooporphyrin, Porphyrinogen IX, Protoporphyrin, PROTOPORPHYRIN IX
Definition:	A cyclic tetrapyrrole that consists of porphyrin bearing four methyl substituents at positions 3, 8, 13 and 17, two vinyl substituents at positions 7 and 12 and two 2-carboxyethyl substituents at positions 2 and 18. The parent of the class of protoporphyrins.
Ontology:	ChEBI [CHEBI:15430]  ( EBI )