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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.

Term:kermesic acid
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Accession:CHEBI:90183 term browser browse the term
Definition:A tetrahydroxyanthraquinone that is that is 3,5,6,8-tetrahydroxy-9,10-anthraquinone substituted by methyl and carboxy groups at positions 1 and 2 respectively. It is a natural dye isolated from the insect species Kermes ilices.
Synonyms:exact_synonym: 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid
 related_synonym: 1-Methyl-2-carboxy-3,5,6,8-tetrahydroxyanthraquinone;   C.I. 75460;   C.I. Natural Red 3;   Formula=C16H10O8;   InChI=1S/C16H10O8/c1-4-9-5(2-6(17)10(4)16(23)24)13(20)12-11(15(9)22)7(18)3-8(19)14(12)21/h2-3,17-19,21H,1H3,(H,23,24);   InChIKey=CXORMDKZEUMQHX-UHFFFAOYSA-N;   SMILES=C=1C(=C2C(C3=C(C=C(O)C(C(O)=O)=C3C)C(C2=C(O)C1O)=O)=O)O;   kermes;   natural red 3
 xref: CAS:18499-92-8;   PMID:26515013;   Reaxys:2776900
 cyclic_relationship: is_conjugate_acid_of CHEBI:149530

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  CHEBI ontology 20050
    role 20001
      application 19737
        dye 1365
          kermesic acid 0
Path 2
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  CHEBI ontology 20050
    subatomic particle 20048
      composite particle 20048
        hadron 20048
          baryon 20048
            nucleon 20048
              atomic nucleus 20048
                atom 20048
                  main group element atom 19948
                    p-block element atom 19948
                      carbon group element atom 19872
                        carbon atom 19863
                          organic molecular entity 19863
                            organic group 18937
                              organic divalent group 18922
                                organodiyl group 18922
                                  carbonyl group 18872
                                    carbonyl compound 18872
                                      ketone 17097
                                        cyclic ketone 15648
                                          quinone 8489
                                            acenoquinone 7560
                                              anthraquinone 490
                                                hydroxyanthraquinones 480
                                                  tetrahydroxyanthraquinone 0
                                                    kermesic acid 0
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