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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 19810
    role 19758
      application 19420
        dye 1299
          kermesic acid 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 group 18527
                              organic divalent group 18520
                                organodiyl group 18520
                                  carbonyl group 18427
                                    carbonyl compound 18427
                                      ketone 16171
                                        cyclic ketone 13874
                                          quinone 8341
                                            acenoquinone 7500
                                              anthraquinone 471
                                                hydroxyanthraquinones 462
                                                  tetrahydroxyanthraquinone 0
                                                    kermesic acid 0
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