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hydrogen [4-[[4-(dimethylamino)phenyl](2-hydroxy-3,6-disulphonato-1-naphthyl)methylene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium Structure

hydrogen [4-[[4-(dimethylamino)phenyl](2-hydroxy-3,6-disulphonato-1-naphthyl)methylene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium