Synonyms: Brilliant Blue;Acid Sky Blue A;Pigment Blue 78;Brilliant Blue (parent);68921-42-6;AC1L3X2Y;2650-18-2 (di-ammonium salt);71701-18-3 (di-potassium salt);3844-45-9 (di-hydrochloride salt);15792-67-3 (aluminum[3:1]salt);68921-42-6 (unspecified aluminum salt);71701-19-4 (potassium.hydrochloride salt);25305-78-6;3-[[ethyl-[4-[[4-[ethyl-[(3-sulfophenyl)methyl]amino]phenyl]-(2-sulfophenyl)methylidene]cyclohexa-2,5-dien-1-ylidene]azaniumyl]methyl]benzenesulfonate;Ammonium, ethyl(4-(p-(ethyl(m-sulfobenzyl) amino)-alpha-(o-sulfophenyl) benzylidene)-2 ,5- cyclohexadien-1-ylidene) (m-sulfobenzyl)-, hydroxide, inner salt;Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, inner salt;N-Ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfobenzenemethanaminium inner salt