Moxifloxacin Impurity T Catalogue M320380 CAS 1797982-51-4 M.W 321.30 M.F C16H16FNO5 Specifications FAQs 1-cyclopropyl-7-ethoxy-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid