A yellow pigment identical with hydrobilirubin, abundant in the highly colored urine of fever, and also present in normal urine. See Urochrome.
brown bile pigment formed from urobilinogens and found in feces and in small amounts in urine
AN = a bile pigment; /biosyn /physiol permitted UI = D014557
A brown pigment formed by the oxidation of urobilinogen; may be formed in the urine after exposure to air
A compound derived from urobilinogen and ultimately from the bilirubin excreted in bile.
Urobilin is a yellow linear tetrapyrrole, resulting from the breakdown of haem, a cyclic tetrapyrrole. Urobilin is generated in intestines from bilirubin. It is absorbed into blood stream and is supposed to be degraded in liver.