urohematoporphyrin


u·ro·bi·lin

(yūr'ō-bī'lin), A uroporphyrin; an acyclic tetrapyrrole that is one of the natural breakdown products of heme via choleglobin, verdohemochrome, biliverdin, bilirubin, and d-urobilinogen; a urinary pigment that gives a varying orange-red coloration to urine according to its degree of oxidation. Synonym(s): urohematin, urohematoporphyrin

urohematoporphyrin

(ū″rō-hĕm″ă-tō-por′fĭr-ĭn) [″ + ″ + porphyra, purple] Iron-free hematin in urine when intravascular hemolysis occurs.