3-(Dimethylamino)-7-(methylamino)phenothiazin-5-ium 2',4',5',7'-Tetrabromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H)-9'-[9H]xanthen]-3-one (2:1);AZURE B EOSINATE PRACTICAL GRADE;3-(dimethylamino)-7-(methylamino)phenothiazin-5-ium, salt with 2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one (2:1)
