Chemical Name:N-[(2Z)-3-Ethyl-5-methylthiazol-2(3H)-ylidene]-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide (as per EP) & N-[3-Ethyl-5-methylthiazol-2(3H)-ylidene]-4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxamide 1,1-dioxide (as per USP)
