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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 19810
    role 19758
      application 19420
        anti-asthmatic agent 9178
          khellin 0
Path 2
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  CHEBI ontology 19810
    subatomic particle 19808
      composite particle 19808
        hadron 19808
          baryon 19808
            nucleon 19808
              atomic nucleus 19808
                atom 19808
                  main group element atom 19696
                    p-block element atom 19696
                      carbon group element atom 19599
                        carbon atom 19588
                          organic molecular entity 19588
                            organic molecule 19514
                              organic cyclic compound 19311
                                organic heterocyclic compound 18425
                                  oxacycle 17200
                                    benzopyran 10149
                                      1-benzopyran 9865
                                        chromenes 933
                                          chromenone 854
                                            chromones 410
                                              furanochromone 0
                                                khellin 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.