5-[(4-Chloro-benzoylamino)-methyl]-thiophene-2-carboxylic acid methyl ester

5-甲基-2-噻吩甲酸

5-甲基噻吩-2-羧酸甲酯

5-(溴甲基)-2-噻吩羧酸甲酯

5-azidomethylthiophene-2-carboxylic acid methyl ester