quinolone monocarboxylic acid amino acid organofluorine compound N-arylpiperazine secondary amino compound tertiary amino compound 1-(2,4-difluorophenyl)-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 1-(2,4-difluorophenyl)-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 417.130 417.38110 A quinolone that is 4-oxo-1,4-dihydroquinoline-3-carboxylic acid which is substituted at positions 1, 6, and 7 by 2,4-difluorophenyl, fluorine, and 3-methylpiperazin-1-yl groups, respectively. C21H18F3N3O3 CC1CN(CCN1)c1cc2n(cc(C(O)=O)c(=O)c2cc1F)-c1ccc(F)cc1F CHEBI:77796 InChI=1S/C21H18F3N3O3/c1-11-9-26(5-4-25-11)19-8-18-13(7-16(19)24)20(28)14(21(29)30)10-27(18)17-3-2-12(22)6-15(17)23/h2-3,6-8,10-11,25H,4-5,9H2,1H3,(H,29,30) QKDHBVNJCZBTMR-UHFFFAOYSA-N chebi_ontology quinolone antibiotic