Definition: 1,3,6,7-Tetramethyl-4,5-dicarboxyethyl-2,8-divinylbilenone. Biosynthesized from hemoglobin as a precursor of bilirubin. Occurs in the bile of AMPHIBIANS and of birds, but not in normal human bile or serum.
a bile pigment in amphibia & birds but not in normal human bile; /biosyn /physiol permitted
Other names Uteroverdine; Ooecyan; Dehydrobilirubin; alpha, Biliverdin IX; IX, Biliverdin; IX alpha, Biliverdin; Biliverdin IX alpha; Biliverdin IX; Biliverdin