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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:7806 term browser browse the term
Definition:A germacranolide that has formula C17H22O5.
Synonyms:related_synonym: Formula=C17H22O5;   InChI=1S/C17H22O5/c1-10-5-4-6-13(9-21-12(3)18)8-14(19)16-11(2)17(20)22-15(16)7-10/h6-7,14-16,19H,2,4-5,8-9H2,1,3H3/b10-7+,13-6-/t14-,15-,16-/m1/s1;   InChIKey=XFJQSSRNKXJHCG-KZTFHYRBSA-N;   SMILES=CC(=O)OC\\C1=C/CC\\C(C)=C\\[C@H]2OC(=O)C(=C)[C@@H]2[C@H](O)C1
 xref: CAS:50886-56-1;   KEGG:C09522;   KNApSAcK:C00003343

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19801
    chemical entity 19800
      atom 19797
        nonmetal atom 19672
          carbon atom 19572
            organic molecular entity 19572
              isoprenoid 9603
                terpene 9603
                  sesquiterpene 2692
                    germacrane 16
                      germacranolide 6
                        Ovatifolin 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19801
    subatomic particle 19797
      composite particle 19797
        hadron 19797
          baryon 19797
            nucleon 19797
              atomic nucleus 19797
                atom 19797
                  main group element atom 19684
                    p-block element atom 19684
                      carbon group element atom 19583
                        carbon atom 19572
                          organic molecular entity 19572
                            organic group 18520
                              organic divalent group 18513
                                organodiyl group 18513
                                  carbonyl group 18415
                                    carbonyl compound 18415
                                      carboxylic ester 14085
                                        lactone 5980
                                          terpene lactone 1769
                                            sesquiterpene lactone 1618
                                              germacranolide 6
                                                Ovatifolin 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.