321276 <common-name>(2s)-5-hydroxy-8,8-dimethyl-2-phenyl-2,3-dihydropyrano[2,3-h]chromen-4-one</common-name> <description>(2s)-5-hydroxy-8,8-dimethyl-2-phenyl-2,3-dihydropyrano[2,3-h]chromen-4-one is a chemical compound with the formula C20H18O4. It has an average molecular weight of 322.40 g/mol.</description> <cas nil="true"/> <pubchem-id>13940733</pubchem-id> <chemical-formula>C20H18O4</chemical-formula> <weight>322.4</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">2026-08-29T20:39:30Z</created-at> <updated-at type="dateTime">2026-08-29T20:39:30Z</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>CC1(C=CC2=C(O1)C=C(C3=C2OC(CC3=O)C4=CC=CC=C4)O)C</moldb-smiles> <moldb-formula>C20H18O4</moldb-formula> <moldb-inchi>InChI=1S/C20H18O4/c1-20(2)9-8-13-17(24-20)11-15(22)18-14(21)10-16(23-19(13)18)12-6-4-3-5-7-12/h3-9,11,16,22H,10H2,1-2H3/t16-/m0/s1</moldb-inchi> <moldb-inchikey>VYVZELWVPQMZDE-INIZCTEOSA-N</moldb-inchikey> <moldb-average-mass type="decimal" nil="true"/> <moldb-mono-mass type="decimal">322.1205091</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>4</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>CHEM317169</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>(2s)-5-hydroxy-8,8-dimethyl-2-phenyl-2,3-dihydropyrano[2,3-h]chromen-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>Phenylpropanoids and polyketides</superklass> <klass>Flavonoids</klass> <subklass>Pyranoflavonoids</subklass> <paper-count type="integer" nil="true"/> <sync-id>CED0271998</sync-id> <structure-inchikey>VYVZELWVPQMZDE-UHFFFAOYSA-N</structure-inchikey> <structure-fingerprint>42000000000004000000000000000000000000000000000000000800010000000000000000000020000000000000000004020000000000000040000000000000000000001000000000000000000000000020800000000000000000000003000000001000010000000000800000100000000000020000000004000000000000104000000048000000800000000000002000002000000108000000000000000021200200000000000000000000080004000000000000000000000000000000000000000000000000002100000000000001000000000000000000001600010000000000000000000000000040040000400000000000000000000000000000001000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle>ï¾­Þ������������������������€���`������� ������h��������h�������@(������@(�������(������@h�������@(������@(������@(�������(�������`�������`�������(�������(������@(������@h�������@h�������@h�������@h�������@h��������h��������`��������������(��� ��h��� ��h���h�� h� h� � ���� � ����(������h���h���h���h���h��� ������ �h�� ��h�B�������������� ����� � �����������������</structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T05:26:10Z</structure-indexed-at> </compound>