| Label | Id | |
|---|---|---|
| (protoporphyrinato)iron(1+) | http://purl.obolibrary.org/obo/CHEBI_36144 | |
| (protoporphyrinato)iron(III) | http://purl.obolibrary.org/obo/CHEBI_36144 | |
| [Fe(ppIX)](+) | http://purl.obolibrary.org/obo/CHEBI_36144 | |
| ferriheme | http://purl.obolibrary.org/obo/CHEBI_36144 | |
| ferriprotoheme | http://purl.obolibrary.org/obo/CHEBI_36144 | |
| protoferriheme | http://purl.obolibrary.org/obo/CHEBI_36144 | |
| ferriheme b | http://purl.obolibrary.org/obo/CHEBI_36144 |
