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A yellow urinary pigment, considered by Thudichum as the only pigment present in normal urine. It is regarded by Maly as identical with urobilin.

pelvis of the kidney. -- Urinary pigments, (Physiol. Chem.), certain colored substances, urochrome, or urobilin, uroerythrin, etc., present in the urine together with indican, a colorless substance which by oxidation is convertible into colored bodies.

bin, abundant in the highly colored urine of fever, and also present in normal urine. See Urochrome.

rmed either directly or indirectly (through bilirubin) from the hæmatin of the blood. See Urochrome, and Urobilin.