2322849-92-1

6-Chloro-4-hydroxy-2-methyl-, 1,1-Dioxide, 2H-Thieno[2,3-e]-1,2-thiazine-3-carboxylic Acid is derivative of 6-Chloro-4-hydroxy-2-methyl-2H-thieno[2,3-e]-1,2-thiazine-3-carboxylic Acid Methyl Ester 1,1-Dioxide (C366630(P)), which is used as a catalyst in the synthesis of Lornoxicam, a non-steroidal anti-inflammatory drug.