CAS 139693-52-0 appears in our catalog under these names: 2,2-Diacetoxy-6-cyclopropyl-7-ethyl-8,9-dimethyl-4-oxo-4,6-dihydro-2H-naphtho[1,2-d][1,3,2]dioxaborinin-1-ium-2-uide, 97%, Moxifloxacin Boron Complex Impurity, Moxifloxacin Impurity 12, 1-Cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid Anhydride with Diacetyl Borate. Offered by: Chemat Brand, Hubei YoungXin, TRC. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg, 500mg.