fluproquazone fluproquazone fluproquazone (trade name tormosyl, rf 46-790 ) was a quinazolinone derivative with potent analgesic, antipyretic, and anti-inflammatory effects discovered by sandoz. it was withdrawn during development due to liver toxicity.: 370 : 520 fluproquazoneclinical dataatc codenoneidentifiers iupac name 4-(4-fluorophenyl)-7-methyl-1-propan-2-ylquinazolin-2-one cas number40507-23-1pubchem cid38503chemspider35289 yuniiu4k85o58hdkeggd04229 ycomptox dashboard (epa)dtxsid70193519 chemical and physical dataformulac18h17fn2omolar mass296.345 g·mol−13d model (jsmol)interactive image smiles fc3ccc(c/1=n/c(=o)n(c2cc(ccc\12)c)c(c)c)cc3 inchi inchi=1s/c18h17fn2o/c1-11(2)21-16-10-12(3)4-9-15(16)17(20-18(21)22)13-5-7-14(19)8-6-13/h4-11h,1-3h3 ykey:zwouxwwgkjbahq-uhfffaoysa-n y (verify)