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cas no:81530-83-8||chemical formula:c19h24fn3o3||molecular weight:361.41740||exact mass:361.18017 ||ethyl 1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-……

cas no:n/a||chemical formula:c14h13clfno3||molecular weight:297.71040||exact mass:297.05680 ||ethyl 5-chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carbo……

cas no:70458-73-0||chemical formula:c17h20cln3o3||molecular weight:349.81500||exact mass:349.11932||6-chloro-1-ethyl-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydr……

cas no:879005-96-6||chemical formula:c16h20fn3o||molecular weight:289.35440||exact mass:289.15904||1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)quinolin-4(1h)-one