1.0 2026-09-21 20:27:21 UTC 2026-09-21 20:27:57 UTC FDB117049 oxyphenbutazone 4-butyl-1-(4-hydroxyphenyl)-2-phenyl-pyrazolidine-3,5-dione 4-butyl-1-(4-hydroxyphenyl)-2-phenylpyrazolidine-3,5-dione C19H20N2O3 CCCCC1C(=O)N(N(C1=O)C2=CC=C(C=C2)O)C3=CC=CC=C3 InChI=1S/C19H20N2O3/c1-2-3-9-17-18(23)20(14-7-5-4-6-8-14)21(19(17)24)15-10-12-16(22)13-11-15/h4-8,10-13,17,22H,2-3,9H2,1H3 HFHZKZSRXITVMK-UHFFFAOYSA-N smiles CCCCC1C(=O)N(N(C1=O)C2=CC=C(C=C2)O)C3=CC=CC=C3 ChemAxon formula C19H20N2O3 ChemAxon inchi InChI=1S/C19H20N2O3/c1-2-3-9-17-18(23)20(14-7-5-4-6-8-14)21(19(17)24)15-10-12-16(22)13-11-15/h4-8,10-13,17,22H,2-3,9H2,1H3 ChemAxon inchikey HFHZKZSRXITVMK-UHFFFAOYSA-N ChemAxon