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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:6133 term browser browse the term
Definition:A furanochrome in which the basic tricyclic skeleton is substituted at positions 4 and 9 with methoxy groups and at position 7 with a methyl group. A major constituent of the plant Ammi visnaga it is a herbal folk medicine used for various illnesses, its main effect being as a vasodilator.
Synonyms:exact_synonym: 4,9-dimethoxy-7-methyl-5H-furo[3,2-g]chromen-5-one
 related_synonym: 4,9-dimethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one;   Formula=C14H12O5;   InChI=1S/C14H12O5/c1-7-6-9(15)10-11(16-2)8-4-5-18-12(8)14(17-3)13(10)19-7/h4-6H,1-3H3;   InChIKey=HSMPDPBYAYSOBC-UHFFFAOYSA-N;   SMILES=C12=C(C(=C3OC=CC3=C1OC)OC)OC(C)=CC2=O;   khelline;   khellinum;   quelina
 xref: CAS:82-02-0;   Drug_Central:3313;   KEGG:C09010;   KNApSAcK:C00002431;   LINCS:LSM-5863;   LIPID_MAPS_instance:LMPK13110001;   PMID:12880095;   PMID:19639121;   PMID:21069311;   PMID:24069365;   PMID:26681890;   PMID:27936681;   PMID:28166217;   Reaxys:263185;   Wikipedia:Khellin

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  CHEBI ontology 19800
    role 19751
      application 19498
        anti-asthmatic agent 9239
          khellin 0
Path 2
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  CHEBI ontology 19800
    subatomic particle 19799
      composite particle 19799
        hadron 19799
          baryon 19799
            nucleon 19799
              atomic nucleus 19799
                atom 19799
                  main group element atom 19698
                    p-block element atom 19698
                      carbon group element atom 19619
                        carbon atom 19609
                          organic molecular entity 19609
                            organic molecule 19549
                              organic cyclic compound 19343
                                organic heterocyclic compound 18584
                                  oxacycle 17609
                                    benzopyran 11162
                                      1-benzopyran 10903
                                        chromenes 3026
                                          chromenone 2966
                                            chromones 428
                                              furanochromone 0
                                                5H-furo[3,2-g]chromen-5-one 0
                                                  khellin 0
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