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The reddish-brown crystalline chloride of heme, C34H32N4O4FeCl, produced when hemoglobin reacts with glacial acetic acid and sodium chloride in a laboratory test for the presence of blood.


(ˈhi mɪn)

a crystalline substance, C34H32N4O4FeCl, that forms when blood is mixed with sodium chloride and pure acetic acid and heated: used as a test for the presence of blood in stains.
[1855–60; < Greek haîm(a) blood + -in1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hemin - a reddish-brown chloride of hemehemin - a reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood
chloride - any compound containing a chlorine atom
References in periodicals archive ?
Metabolic activities of this malaria parasite generates ferriprotoporphyrin IX.
Involvement of lipids in ferriprotoporphyrin IX polymerization in malaria.
Plant peroxidases, like Hb, are hemoproteins that have the prosthetic group ferriprotoporphyrin IX (hemin) (5).