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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:lactucin 15-oxalate
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Accession:CHEBI:90272 term browser browse the term
Definition:A sesquiterpene lactone obtained by formal condensation of one of the carboxy groups of oxalic acid with the 15-hydroxy group of lactucin. Found in chicory.
Synonyms:exact_synonym: {[(3aR,4S,9aS,9bR)-4-hydroxy-6-methyl-3-methylidene-2,7-dioxo-2,3,3a,4,5,7,9a,9b-octahydroazuleno[4,5-b]furan-9-yl]methoxy}(oxo)acetic acid
 related_synonym: Formula=C17H16O8;   InChI=1S/C17H16O8/c1-6-3-9(18)12-7(2)16(22)25-14(12)13-8(4-10(19)11(6)13)5-24-17(23)15(20)21/h4,9,12-14,18H,2-3,5H2,1H3,(H,20,21)/t9-,12+,13-,14-/m0/s1;   InChIKey=LMOXWYJMYLUOMS-VZLIPTOUSA-N;   SMILES=O=C(O)C(=O)OCC1=CC(=O)C=2[C@]1([C@]3(OC(=O)C(=C)[C@@]3([C@@H](O)CC2C)[H])[H])[H]
 xref: CAS:303130-76-9;   KNApSAcK:C00034017

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  CHEBI ontology 19863
    role 19835
      biological role 19833
        biochemical role 19540
          metabolite 19527
            eukaryotic metabolite 19349
              plant metabolite 17967
                lactucin 15-oxalate 0
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  CHEBI ontology 19863
    subatomic particle 19861
      composite particle 19861
        hadron 19861
          baryon 19861
            nucleon 19861
              atomic nucleus 19861
                atom 19861
                  main group element atom 19807
                    p-block element atom 19807
                      carbon group element atom 19748
                        carbon atom 19744
                          organic molecular entity 19744
                            heteroorganic entity 19498
                              organochalcogen compound 19259
                                organooxygen compound 19175
                                  carbonyl compound 18899
                                    ketone 17186
                                      cyclic ketone 15702
                                        alicyclic ketone 1181
                                          cyclic terpene ketone 145
                                            lactucin 0
                                              lactucin 15-oxalate 0
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