Synonyms: Ethanesulfonic acid, 2,2'-((2,17-diethenyl-1,10,11,19,22,23-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-21H-biline-8,12-diyl)bis((1-oxo-3,1-propanediyl)imino))bis-, sodium salt (1:2);Ditaurobilirubin, disodium;Ditaurobilirubin, disodium salt;Disodium 2,2'-((1,10,19,22,23,24-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-2,17-divinyl-21H-biline-8,12-diyl)bis((1-oxopropane-3,1-diyl)imino))bis(ethane-1-sulphonate);Ethanesulfonic acid, 2,2'-((2,17-diethenyl-1,10,11,19,22,23-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-21H-biline-8,12-diyl)bis((1-oxo-3,1-propanediyl)imino))bis-, disodium salt;disodium 2-[3-[4-methyl-2-[[4-methyl-5-[(E)-(3-methyl-5-oxo-4-vinyl-pyrrol-2-ylidene)methyl]-3-[3-oxo-3-(2-sulfonatoethylamino)propyl]-1H-pyrrol-2-yl]methyl]-5-[(Z)-(4-methyl-5-oxo-3-vinyl-pyrrol-2-ylidene)methyl]-2H-pyrrol-3-yl]propanoylamino]ethanesulfonate;2-[3-[4-methyl-2-[[4-methyl-5-[(Z)-(4-methyl-5-oxo-3-vinyl-pyrrol-2-ylidene)methyl]-3-[3-oxo-3-(2-sulfoethylamino)propyl]-1H-pyrrol-2-yl]methyl]-5-[(Z)-(4-methyl-5-oxo-3-vinyl-pyrrol-2-ylidene)methyl]-1H-pyrrol-3-yl]propanoylamino]ethanesulfonic acid;disodium 2-[3-[4-methyl-2-[[4-methyl-5-[(Z)-(3-methyl-5-oxo-4-vinyl-pyrrol-2-ylidene)methyl]-3-[3-oxo-3-(2-sulfonatoethylamino)propyl]-1H-pyrrol-2-yl]methyl]-5-[(Z)-(4-methyl-5-oxo-3-vinyl-pyrrol-2-ylidene)methyl]-1H-pyrrol-3-yl]propanoylamino]ethanesulfonate