Synonyms: 4-[(2Z)-5,6-dichloro-2-[2-(1,3-diethyl-4, 6-dioxo-2-sulfanylidene-1, 3-diazinan-5-ylidene)ethylidene]-3-ethylbenzimidazol-1-yl]butane-1- sulfonate;1H-Benzimidazole-1-butanesulfonicacid,5,6-dichloro-2-[2-(1,3-diethyltetrahydro-4,6-dioxo-2-thioxo-5(2H)-pyrimidinylidene)ethylidene]-3-ethyl-2,3-dihydro-,sodium salt (1:1);sodium;1H-Benzimidazole-1-butanesulfonicacid,5,6-dichloro-2-[(1,3-diethyltetrahydro-4,6-dioxo-2-thioxo-5(2H)-pyrimidinylidene)ethylidene]-3-ethyl-2,3-dihydro-,sodium salt (9CI);