Similar names: 21H-Biline-8,12-dipropanoic acid, 2,17-diethenyl-1,10,19,22,23,24-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-; Biline-8,12-dipropionic acid, 1,10,19,22,23,24-hexahydro-2,7,13,17-tetramethyl-1,19-dioxo-3,18-divinyl- (8CI); Hematoidin (6CI); 2,17-Diethenyl-1,10,19,22,23,24-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-21H-biline-8,12-dipropanoic acid; (4Z,15Z)-Bilirubin IXα; (Z,Z)-Bilirubin; (Z,Z)-Bilirubin IXα; Bilirubin; Bilirubin IXα; Cholerythrin; NSC 26685