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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:9941 term browser browse the term
Definition:An extended flavonoid that consists of quercetin substituted by a 2-isopropenyldihydrofuran ring across positions 6 and 7.
Synonyms:exact_synonym: 7-(3,4-dihydroxyphenyl)-4,6-dihydroxy-2-(prop-1-en-2-yl)-2,3-dihydro-5H-furo[3,2-g]chromen-5-one
 related_synonym: 2''-isopropenyldihydrofurano(4'',5'':6,7)quercetin;   Formula=C20H16O7;   InChI=1S/C20H16O7/c1-8(2)13-6-10-14(26-13)7-15-16(17(10)23)18(24)19(25)20(27-15)9-3-4-11(21)12(22)5-9/h3-5,7,13,21-23,25H,1,6H2,2H3;   InChIKey=YFDRNZOCVRPNBL-UHFFFAOYSA-N;   SMILES=CC(=C)C1Cc2c(O1)cc1oc(-c3ccc(O)c(O)c3)c(O)c(=O)c1c2O
 xref: CAS:139955-63-8;   KEGG:C10194;   KNApSAcK:C00005099;   LIPID_MAPS_instance:LMPK12112283;   Reaxys:5360077

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19771
    role 19716
      chemical role 19256
        antioxidant 14273
          quercetin 4026
            velloquercetin 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19771
    subatomic particle 19770
      composite particle 19770
        hadron 19770
          baryon 19770
            nucleon 19770
              atomic nucleus 19770
                atom 19770
                  main group element atom 19658
                    p-block element atom 19658
                      carbon group element atom 19574
                        carbon atom 19564
                          organic molecular entity 19564
                            organic molecule 19497
                              organic cyclic compound 19321
                                organic heterocyclic compound 18512
                                  oxacycle 17548
                                    benzopyran 10280
                                      1-benzopyran 10002
                                        flavonoid 6516
                                          flavones 4200
                                            hydroxyflavone 4188
                                              flavonols 4099
                                                7-hydroxyflavonol 4078
                                                  quercetin 4026
                                                    velloquercetin 0
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