Moxifloxacin Impurity S Catalogue M320379 CAS 2205053-60-5 M.W 437.90 M.F C21H25ClFN3O4 Specifications FAQs 1-cyclopropyl-7-fluoro-8-methoxy-6-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride