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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:152056 term browser browse the term
Definition:A bianthracene homodimer composed of two nataloe-emodin moieties linked by an aryl-aryl bond. It is a secondary metabolite isolated from the fungal tomato pathogen Cladosporium fulvum.
Synonyms:exact_synonym: 1',4,5,6,7',8'-hexahydroxy-2,3'-dimethyl[1,2'-bianthracene]-9,9',10,10'-tetrone
 related_synonym: Formula=C30H18O10;   InChI=1S/C30H18O10/c1-9-7-13-21(29(39)19-11(24(13)34)3-5-14(31)26(19)36)28(38)18(9)17-10(2)8-16(33)22-23(17)25(35)12-4-6-15(32)27(37)20(12)30(22)40/h3-8,31-33,36-38H,1-2H3;   InChIKey=XHKQDFVQROFUEL-UHFFFAOYSA-N;   SMILES=C1(=C(C=CC2=C1C(C3=C(C=C(C(=C3C2=O)C4=C(C=C5C(C=6C=CC(=C(C6C(C5=C4O)=O)O)O)=O)C)C)O)=O)O)O
 xref: CAS:11032-85-2;   PMID:24465762;   PMID:26415644;   PMID:27274078;   PMID:27997759;   PMID:30582052;   PMID:30735556
 cyclic_relationship: is_conjugate_acid_of CHEBI:152057

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  CHEBI ontology 19853
    role 19804
      biological role 19804
        biophysical role 12649
          biological pigment 1050
            cladofulvin 0
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  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    p-block element atom 19744
                      carbon group element atom 19650
                        carbon atom 19639
                          organic molecular entity 19639
                            organic group 18550
                              organic divalent group 18541
                                organodiyl group 18541
                                  carbonyl group 18447
                                    carbonyl compound 18447
                                      ketone 16192
                                        cyclic ketone 13904
                                          quinone 8350
                                            acenoquinone 7509
                                              anthraquinone 473
                                                hydroxyanthraquinones 464
                                                  trihydroxyanthraquinone 210
                                                    nataloe-emodin 0
                                                      cladofulvin 0
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