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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:lactucopicrin 15-oxalate
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Accession:CHEBI:90280 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 lactucopicrin. Found in chicory.
Synonyms:exact_synonym: {[(3aR,4S,9aS,9bR)-4-{[(4-hydroxyphenyl)acetyl]oxy}-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: 15-oxalyllactucopicrin;   Formula=C25H22O10;   InChI=1S/C25H22O10/c1-11-7-17(34-18(28)8-13-3-5-15(26)6-4-13)20-12(2)24(31)35-22(20)21-14(9-16(27)19(11)21)10-33-25(32)23(29)30/h3-6,9,17,20-22,26H,2,7-8,10H2,1H3,(H,29,30)/t17-,20+,21-,22-/m0/s1;   InChIKey=AUULYUITRYGGJX-XGARDCMYSA-N;   SMILES=O(CC1=CC(=O)C2=C(C)C[C@@H]([C@]3(C(=C)C(=O)O[C@@]3([C@@]12[H])[H])[H])OC(=O)CC=4C=CC(O)=CC4)C(C(=O)O)=O
 xref: CAS:303130-75-8;   KNApSAcK:C00034018

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  CHEBI ontology 19838
    role 19810
      application 19679
        food additive 16140
          food acidity regulator 11972
            acetic acid 11089
              4-hydroxyphenylacetic acid 1
                lactucopicrin 15-oxalate 0
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  CHEBI ontology 19838
    subatomic particle 19836
      composite particle 19836
        hadron 19836
          baryon 19836
            nucleon 19836
              atomic nucleus 19836
                atom 19836
                  main group element atom 19782
                    p-block element atom 19782
                      carbon group element atom 19722
                        carbon atom 19719
                          organic molecular entity 19719
                            heteroorganic entity 19474
                              organochalcogen compound 19262
                                organooxygen compound 19153
                                  carbonyl compound 18904
                                    ketone 17170
                                      cyclic ketone 15708
                                        alicyclic ketone 1181
                                          cyclic terpene ketone 145
                                            lactucin 0
                                              lactucopicrin 15-oxalate 0
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