Hemin is an iron-containing porphyrin.[1] More specifically, it is protoporphyrin IX containing a ferric iron ion (heme B) with a chloride ligand. Used in the management of porphyria attacks, particularly in acute intermittent porphyria. Sometimes distinguished from hematin which has a hydroxide ligand in place of the chloride, however, the terms are sometimes equated.[2] Hematin is considered the "X factor" required for the growth of Haemophilus influenzae.[3]Synonyms:Chloro(protoporphyrinato)iron(III); Chlorohemin; Chloroprotoporphyrin IX iron(III); Ferriprotoporphyrin IX chloride, Hemin(chloride)CAS No:16009-13-5Molecular Formula:C34H32ClFeN4O4Molecular Weight:652.0Appearance:Supplied as a deep, black blue, crystalinel powder.Purity:≥98% (ferrous porphyrin)Loss on Drying:≤2%Iron:As reportedStorage and Stability:Store at 4°C.
