Synonyms: 21H-Biline-3,7-dipropanoicacid, 13,18-diethenyl-1,19,22,24-tetrahydro-2,8,12,17-tetramethyl-1,19-dioxo-,dimethyl ester (9CI); Biline-3,7-dipropionic acid,1,19,22,24-tetrahydro-2,8,12,17-tetramethyl-1,19-dioxo-13,18-divinyl-, dimethylester (8CI); Biliverdin IXb dimethyl ester