Desmethyl Ofloxacin

9-fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7h-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid ; desmethyl ofloxacin ; 9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; ofloxacin related compound a (25 mg) (9-fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid) ; 7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylicacid, 9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)- ; desmethyl ofloxacin hydrochloride ; (rs)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(piperazin-1-yl)-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; ofloxacin related compound a ; ofloxacin related compound a (25 mg) ((rs)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(pipera-zin-1 -yl)-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid) ; ofloxacin related compound a (25 mg) ((rs)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(piperazin-1-yl)-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid) ; ofloxacin ep impurity e ; 9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hydrochloride