Synonyms: | 4,7-Dichloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one;C.I.45435:1;C.I.45435A;C.I.Solvent Red 47;Ext.D&C Red No.4;2-(3-Hydroxy-2,4,5,7-tetraiodo-6-oxo-6H-xanthene-9-yl)-3,6-dichlorobenzoic acid;3,6-Dichloro-2-(6-hydroxy-2,4,5,7-tetraiodo-3-oxo-3H-xanthen-9-yl)benzoic acid |