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