5-methyl-N-(4-nitrophenyl)-2-thiophenecarboxamide
5-methyl-N-(4-nitrophenyl)-thiophene-2-carboxamide 5-methyl-N-(4-nitrophenyl)thiophene-2-carboxamide 5-methyl-N-(4-nitrophenyl)thiophen-2-carboxamid
5-méthyl-N-(4-nitrophényl)thiophéne-2-carboxamide 5-メチル-N-(4-ニトロフェニル)チオフェン-2-カルボキサミド
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