IXalpha, Biliverdin

Medical Condition:
IXalpha, Biliverdin

1,3,6,7-Tetramethyl-4,5-dicarboxyethyl-2,8-divinylbilenone. Biosynthesized from hemoglobin as a precursor of bilirubin. Occurs in the bile of amphibia and of birds, but not in normal human bile or serum.