Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


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.

go back to main search page
Accession:CHEBI:142640 term browser browse the term
Definition:A member of the class of nectriapyrones that is pyran-2-one which is substituted at positions 3, 4, and 6 by methyl, hydroxy, and but-2-en-2-yl groups, respectively in which the butenyl substituent has E configuration.
Synonyms:exact_synonym: 6-[(2E)-but-2-en-2-yl]-4-hydroxy-3-methyl-2H-pyran-2-one
 related_synonym: Formula=C10H12O3;   InChI=1S/C10H12O3/c1-4-6(2)9-5-8(11)7(3)10(12)13-9/h4-5,11H,1-3H3/b6-4+;   InChIKey=OBAWNXJOHPSFMJ-GQCTYLIASA-N;   SMILES=C=1(C=C(OC(C1C)=O)/C(/C)=C/C)O;   demethylnectriapyrone
 xref: PMID:30443971

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 24845
    chemical entity 24815
      molecular entity 24781
        polyatomic entity 24712
          heteroatomic molecular entity 24320
            hydroxides 22951
              organic hydroxy compound 20799
                desmethylnectriapyrone 0
                  nectriapyrone + 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 24845
    subatomic particle 24805
      composite particle 24805
        hadron 24805
          baryon 24805
            nucleon 24805
              atomic nucleus 24805
                atom 24805
                  main group element atom 24674
                    p-block element atom 24674
                      carbon group element atom 24472
                        carbon atom 24436
                          organic molecular entity 24436
                            organic group 22892
                              organic divalent group 22872
                                organodiyl group 22872
                                  carbonyl group 22866
                                    carbonyl compound 22866
                                      carboxylic ester 16805
                                        lactone 11606
                                          delta-lactone 3974
                                            2-pyranones 766
                                              nectriapyrones 0
                                                desmethylnectriapyrone 0
                                                  nectriapyrone + 0
paths to the root