tosufloxacin tosufloxacin tosufloxacin is a fluoroquinolone antibiotic. it has a controversial safety profile in relation to other fluoroquinolones. it is associated with severe thrombocytopenia and nephritis, and hepatotoxicity. it is sold in japan under the brand name ozex. tosufloxacinclinical dataahfs/drugs.cominternational drug namesatc codej01ma22 (who) s01ae09 (who)identifiers iupac name 7-(3-aminopyrrolidin-1-yl)-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid cas number100490-36-6 ypubchem cid5517chemspider5316 nuniighj553kqpskeggd02317 ychebichebi:77573 nchemblchembl273348 ncomptox dashboard (epa)dtxsid2044135 chemical and physical dataformulac19h15f3n4o3molar mass404.349 g·mol−13d model (jsmol)interactive image smiles nc1ccn(c1)c1nc2n(cc(c(o)=o)c(=o)c2cc1f)-c1ccc(f)cc1f inchi inchi=1s/c19h15f3n4o3/c20-9-1-2-15(13(21)5-9)26-8-12(19(28)29)16(27)11-6-14(22)18(24-17(11)26)25-4-3-10(23)7-25/h1-2,5-6,8,10h,3-4,7,23h2,(h,28,29) nkey:wuwfmdmbojlqiv-uhfffaoysa-n n ny (what is this?) (verify)