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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:9-deoxy-hymatoxin A
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Accession:CHEBI:141328 term browser browse the term
Definition:An organic heterotetracyclic compound that is isopimarane in which a hydrogen at position 2 of the 13-ethyl substituent has been replaced by a (sulfooxy) group, a double bond has been introduced at the 7-8 position, and the beta-methyl group at position 4 has been oxidised to the corrsponding carboxy group and coupled to position 6 to give a gamma-lactone. Isolated from an avendophytic fungus, Xylaria sp. YM 311647, obtained from Azadirachta indica, it shows potent inhibitory activity against C. albicans and Pyricularia oryzae.
Synonyms:exact_synonym: (6beta,13alpha)-18-oxo-6,18-epoxypimar-7-en-16-yl hydrogen sulfate
 related_synonym: 9-deoxyhymatoxin A;   Formula=C20H30O6S;   InChI=1S/C20H30O6S/c1-18(9-10-25-27(22,23)24)8-5-14-13(12-18)11-15-16-19(14,2)6-4-7-20(16,3)17(21)26-15/h11,14-16H,4-10,12H2,1-3H3,(H,22,23,24)/t14-,15+,16+,18+,19+,20-/m0/s1;   InChIKey=ZRFMKYKOLFQQPF-QWFGBESBSA-N;   SMILES=[C@@]12([C@@]3(C(=C[C@@H]4[C@@]2([H])[C@](CCC1)(C(O4)=O)C)C[C@](CC3)(CCOS(O)(=O)=O)C)[H])C
 xref: PMID:24890390

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  CHEBI ontology 19810
    role 19758
      biological role 19758
        antimicrobial agent 17329
          antifungal agent 14912
            9-deoxy-hymatoxin A 0
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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
                      chalcogen 19391
                        oxygen atom 19353
                          oxygen molecular entity 19353
                            hydroxides 19103
                              oxoacid 18235
                                chalcogen oxoacid 11493
                                  sulfur oxoacid 11097
                                    sulfuric acid 8015
                                      sulfuric acid derivative 8015
                                        sulfates 8012
                                          organic sulfate 1938
                                            9-deoxy-hymatoxin A 0
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