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![Levofloxacin impurity I dexfloxacin (+)-(R)-3-methyl-9-fluoro-2,3-dihydro-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-[1,4]benzoxazine-6-carboxylic acid](/upload/image/thumb/2_600_600_20250318202503181048.jpg)
1-Adamantanamine; Amantadine
