321280 <common-name>2-(3-methoxy-4-oxo-2-phenylchromen-6-yl)butanoic acid</common-name> <description>2-(3-methoxy-4-oxo-2-phenylchromen-6-yl)butanoic acid is a chemical compound with the formula C20H18O5. It has an average molecular weight of 338.40 g/mol.</description> <cas>173469-87-9</cas> <pubchem-id>3075262</pubchem-id> <chemical-formula>C20H18O5</chemical-formula> <weight>338.4</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">2026-08-29T20:39:55Z</created-at> <updated-at type="dateTime">2026-08-29T20:39:55Z</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>CCC(C1=CC2=C(C=C1)OC(=C(C2=O)OC)C3=CC=CC=C3)C(=O)O</moldb-smiles> <moldb-formula>C20H18O5</moldb-formula> <moldb-inchi>InChI=1S/C20H18O5/c1-3-14(20(22)23)13-9-10-16-15(11-13)17(21)19(24-2)18(25-16)12-7-5-4-6-8-12/h4-11,14H,3H2,1-2H3,(H,22,23)</moldb-inchi> <moldb-inchikey>HGJXWKWXYVMZBF-UHFFFAOYSA-N</moldb-inchikey> <moldb-average-mass type="decimal" nil="true"/> <moldb-mono-mass type="decimal">338.1154237</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>3.8</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>CHEM317173</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-(3-methoxy-4-oxo-2-phenylchromen-6-yl)butanoic acid</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>Phenylpropanoids and polyketides</superklass> <klass>Flavonoids</klass> <subklass>O-methylated flavonoids</subklass> <paper-count type="integer" nil="true"/> <sync-id>CED0272002</sync-id> <structure-inchikey>HGJXWKWXYVMZBF-UHFFFAOYSA-N</structure-inchikey> <structure-fingerprint>40400000000002000000800000000000000000000000000000000000000000000000000002000020000400000000800004000000000000000000100000000000000400000000000800000000000000000020800000000100000000008000000000000000110000000040000000100000400000000000000000000004000000000000000040000000800000000080000000800000000140000000000000000000000000000000000000040420080000000000000000000000000020000000000080800000000000010800000000000000000000000000000000000200000000000000a00000000804000040000000000400000008000000000000000000080000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle type="binary" encoding="base64">776t3gAAAAAQAAAAAwAAAAAAAAAZAAAAGwAAAIABBgBgAAAAAQMGAGAAAAAC AgYAYAAAAAMBBkAoAAAAAwQGQGgAAAADAwEGQCgAAAADBAZAKAAAAAMEBkBo AAAAAwMBBkBoAAAAAwMBCEAoAAAAAwIGQCgAAAADBAZAKAAAAAMEBkAoAAAA AwQIACgAAAADAggAKAAAAAMCBgBgAAAAAQMGQCgAAAADBAZAaAAAAAMDAQZA aAAAAAMDAQZAaAAAAAMDAQZAaAAAAAMDAQZAaAAAAAMDAQYAKAAAAAMECAAo AAAAAwIIAGgAAAADAQELAAEAAQIAAgMAAwRoDAQFaAwFBmgMBgdoDAcIaAwG CWgMCQpoDAoLaAwLDGgMDA0oAgsOIA4PAAoQIBARaAwREmgMEhNoDBMUaAwU FWgMAhYAFhcoAhYYIAgDaAwMBWgMFRBoDEIDAAAABgMIBwYFBAYJCgsMBQYG ERITFBUQFwQAAAAAAAAAFg== </structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T05:26:10Z</structure-indexed-at> </compound>