10H-Pyrido(3,2-b)(1,4)benzothiazine-10-carboxylic acid, 3-pipecolinyl ester, hydrochloride 10H-Pyrido(3,2-b)(1,4)benzothiazine-10-carboxylic acid, N-methyl-3-piperidyl ester, hydrochloride 63885-85-8 D 245