hæmin Chem.
(ˈhiːmɪn)
Also hemin.
[f. Gr. αἷµ-α + -in, differentiated in form from the regular hæmatin.]
A deep red crystalline substance obtained from blood, containing hæmatin and hydrochloric acid. Also attrib.
| 1857 in Dunglison Med. Lex. 1865 Watts Dict. Chem. III. 5 Hæmin, a crystallised intensely red substance. 1881 Ibid. VIII. 921 It is inferred that hæmin consists, not simply of hæmatin hydrochloride..but of a mixture of that compound with hæmatin and a crystallisable phosphorised substance. 1893 Mann Forensic Med. 70 Hæmin crystals are composed of hydrochlorate of hæmatin. 1955 Sci. News Let. 29 Oct. 274/1 Hemin, a chemical related to the red color chemical of blood, and protein. 1963 New Scientist 25 July 182 Biliverdin is formed by biological degradation of the red blood pigment hemin. |