Synonyms:
methyl 5-amino-4-nitrothiophene-2-carboxylate ; 5-amino-4-nitro-2-thiophenecarboxylic acid methyl ester ; 2-thiophenecarboxylicacid,5-amino-4-nitro-,methylester(9ci) ; methyl 5-amino-4-nitro-2-thiophenecarboxylate ; 2-thiophenecarboxylic acid, 5-amino-4-nitro-, methyl ester ; 5-amino-4-nitro-