hemin
(hē'mĭn 
)
[hem- + -in]
A brownish-red crystalline salt of heme formed when hemoglobin is heated with glacial acetic acid and sodium chloride. The iron is present in the ferric (Fe3+) state. Hemin is used in testing for presence of blood.
SYN: crystal of hemin.
SEE: heme; X factor.