英文别名3-O-ethyl 4-O-methyl 2-aminothiophene-3,4-dicarboxylate; 2-amino-thiophene-3,4-dicarboxylic acid 3-ethyl ester 4-methyl ester; O3-ethyl O4-methyl 2-azanylthiophene-3,4-dicarboxylate; 3,4-Thiophenedicarboxylicacid,2-amino-,3-ethyl 4-methyl ester; 2-aminothiophene-3,4-dicarboxylic acid O3-ethyl ester O4-methyl ester; 3,4-THIOPHENEDICARBOXYLIC ACID, 2-AMINO-, 3-ETHYL 4-METHYL ESTER; 2-Amino-3,4-thiophenedicarboxylic acid 3-ethyl 4-methyl ester; 2-Aminothiophene-3,4-dicarboxylic Acid 3-Ethyl 4-Methyl Ester 
