Heme
Synonyms
Ferrate(2-), (7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-N21,N22,N23,N24)-, dihydrogen, (SP-4-2)-
Ferroprotoporphyrin
Haem
Heme b
Protoheme
Protoheme IX
The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.