英文别名3-(Aminosulfonyl)-5-chlorothiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 3-(aminosulfonyl)-5-chloro-; 3-(Aminosulfonyl)-5-chloro-2-thiophenecarboxylic acid; Lornoxicam impurity 09; Lornoxicam Impurity N1; 5-Chloro-3-sulfamoyl-thiophene-2-carboxylic acid 
