Murexan
Pronunciation : Mu*rex"an
Part of Speech : n.
Etymology : [From Murexide.] (Chem.)
Definition : Defn: A complex nitrogenous substance obtained from murexide, alloxantin, and other ureids, as a white, or yellowish, crystalline which turns red on exposure to the air; -- called also uramil, dialuramide, and formerly purpuric acid.
Source : Webster's Unabridged Dictionary, 1913