methyl orange [ sodium 4-{[4-(dimethylamino)phenyl]diazenyl}benzene-1- sulfonate | sodium 4-{[4-(dimethylamino)phenyl]azo}benzene-1- sulfonate | C.I. Acid Orange 52 | C.I. Acid orange 52 | eniamethyl orange | gold orange | helianthine | tropaeolin | 4-dimethylaminoazobenzene-4'-sulphoni ]
4-{[4-(diméthylamino)phényl]diazényl}benzène-1-sulfonate de sodium [ 4-{[4-(diméthylamino)phényl]azo}benzène-1-sulfonate de sodium | méthylorange | hélianthine | orangé acide 52 (C.I.) | Orange acide, C.I. 52 | orange III Poirier | tropéoline D | diméthylamino-4 benzène azobenzènesulfonate-4' de sodium ]
