321211 <common-name>2-ethyl-3-(5-methyl-2-phenylpyrazol-3-yl)quinazolin-4-one</common-name> <description>2-ethyl-3-(5-methyl-2-phenylpyrazol-3-yl)quinazolin-4-one is a chemical compound with the formula C20H18N4O. It has an average molecular weight of 330.40 g/mol.</description> <cas>65183-12-2</cas> <pubchem-id>63485</pubchem-id> <chemical-formula>C20H18N4O</chemical-formula> <weight>330.4</weight> <appearance nil="true"/> <melting-point nil="true"/> <boiling-point nil="true"/> <density nil="true"/> <solubility nil="true"/> <specific-gravity nil="true"/> <flash-point nil="true"/> <vapour-pressure nil="true"/> <route-of-exposure nil="true"/> <target nil="true"/> <mechanism-of-toxicity nil="true"/> <metabolism nil="true"/> <toxicity nil="true"/> <lethaldose nil="true"/> <carcinogenicity nil="true"/> <use-source nil="true"/> <min-risk-level nil="true"/> <health-effects nil="true"/> <symptoms nil="true"/> <treatment nil="true"/> <created-at type="dateTime">2026-08-29T20:32:54Z</created-at> <updated-at type="dateTime">2026-08-29T20:32:54Z</updated-at> <interacting-proteins nil="true"/> <wikipedia nil="true"/> <uniprot-id nil="true"/> <kegg-compound-id nil="true"/> <omim-id nil="true"/> <chebi-id nil="true"/> <biocyc-id nil="true"/> <ctd-id nil="true"/> <stitch-id nil="true"/> <drugbank-id nil="true"/> <pdb-id nil="true"/> <actor-id nil="true"/> <organism nil="true"/> <export type="boolean">true</export> <metabolizing-proteins nil="true"/> <transporting-proteins nil="true"/> <moldb-smiles>CCC1=NC2=CC=CC=C2C(=O)N1C3=CC(=NN3C4=CC=CC=C4)C</moldb-smiles> <moldb-formula>C20H18N4O</moldb-formula> <moldb-inchi>InChI=1S/C20H18N4O/c1-3-18-21-17-12-8-7-11-16(17)20(25)23(18)19-13-14(2)22-24(19)15-9-5-4-6-10-15/h4-13H,3H2,1-2H3</moldb-inchi> <moldb-inchikey>KWTCSOJAYWQTDZ-UHFFFAOYSA-N</moldb-inchikey> <moldb-average-mass type="decimal" nil="true"/> <moldb-mono-mass type="decimal">330.1480612</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>3.6</logp> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id nil="true"/> <structure-image-file-name nil="true"/> <structure-image-content-type nil="true"/> <structure-image-file-size type="integer" nil="true"/> <structure-image-updated-at type="dateTime" nil="true"/> <biodb-id nil="true"/> <synthesis-reference nil="true"/> <structure-image-caption nil="true"/> <chemdb-id>CHEM317104</chemdb-id> <dsstox-id nil="true"/> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id nil="true"/> <iupac>2-ethyl-3-(5-methyl-2-phenylpyrazol-3-yl)quinazolin-4-one</iupac> <moldb-polar-surface-area nil="true"/> <moldb-refractivity nil="true"/> <moldb-polarizability nil="true"/> <moldb-rotatable-bond-count nil="true"/> <moldb-acceptor-count nil="true"/> <moldb-donor-count nil="true"/> <moldb-pka-strongest-acidic nil="true"/> <moldb-pka-strongest-basic nil="true"/> <moldb-physiological-charge nil="true"/> <moldb-number-of-rings nil="true"/> <moldb-alogps-logp nil="true"/> <moldb-alogps-logs nil="true"/> <moldb-alogps-solubility nil="true"/> <kingdom>Organic compounds</kingdom> <superklass>Organoheterocyclic compounds</superklass> <klass>Azoles</klass> <subklass>Pyrazoles</subklass> <paper-count type="integer" nil="true"/> <sync-id>CED0271933</sync-id> <structure-inchikey>KWTCSOJAYWQTDZ-UHFFFAOYSA-N</structure-inchikey> <structure-fingerprint>800000100000000000000000000000000000000000000000000042000022000000000000002004000000000000000000000000000080100000000200000000000000000000000020000000000000000000000000000000000000000000000000400000100000000000000100000000000000000000000000004040000000804004000000000000000000000100000000000000000000000000000000000000041000080000000000000080000000000000000000000200020000040000002000000000000000000000000000002010000200000004000100000040000009000040008000000000000000080000000040000000000000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle type="binary" encoding="base64">776t3gAAAAAQAAAAAwAAAAAAAAAZAAAAHAAAAIABBgBgAAAAAQMGAGAAAAAC AgZAKAAAAAMEB0AoAAAAAwMGQCgAAAADBAZAaAAAAAMDAQZAaAAAAAMDAQZA aAAAAAMDAQZAaAAAAAMDAQZAKAAAAAMEBkAoAAAAAwQIACgAAAADAgdAKAAA AAMDBkAoAAAAAwQGQGgAAAADAwEGQCgAAAADBAdAKAAAAAMDB0AoAAAAAwMG QCgAAAADBAZAaAAAAAMDAQZAaAAAAAMDAQZAaAAAAAMDAQZAaAAAAAMDAQZA aAAAAAMDAQYAYAAAAAEDCwABAAECAAIDaAwDBGgMBAVoDAUGaAwGB2gMBwho DAgJaAwJCmgMCgsoAgoMaAwMDSANDmgMDg9oDA8QaAwQEWgMERIgEhNoDBMU aAwUFWgMFRZoDBYXaAwPGAAMAmgMCQRoDBENaAwXEmgMQgQAAAAGAgwKCQQD BgUGBwgJBAUODREQDwYTFBUWFxIXBAAAAAAAAAAW </structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T05:26:07Z</structure-indexed-at> </compound>