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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.

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Accession:CHEBI:17889 term browser browse the term
Definition:A pyridinecarbaldehyde that is pyridine-5-carbaldehyde bearing methyl, hydroxy and hydroxymethyl substituents at positions 2, 3 and 4 respectively.
Synonyms:exact_synonym: 5-hydroxy-4-(hydroxymethyl)-6-methylpyridine-3-carbaldehyde
 related_synonym: Formula=C8H9NO3;   InChI=1S/C8H9NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2-3,11-12H,4H2,1H3;   InChIKey=GNKXHPULSPWUAK-UHFFFAOYSA-N;   SMILES=Cc1ncc(C=O)c(CO)c1O
 alt_id: CHEBI:14477;   CHEBI:24919;   CHEBI:6050
 xref: CAS:66-72-8;   HMDB:HMDB0004290;   KEGG:C06051
 xref_mesh: MESH:D011730
 xref: MetaCyc:CPD-383;   PMID:13702476;   PMID:22770225;   PMID:5769992;   Reaxys:383768

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19921
    role 19896
      biological role 19894
        biochemical role 19584
          metabolite 19568
            isopyridoxal 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19921
    subatomic particle 19919
      composite particle 19919
        hadron 19919
          baryon 19919
            nucleon 19919
              atomic nucleus 19919
                atom 19919
                  main group element atom 19867
                    p-block element atom 19867
                      carbon group element atom 19812
                        carbon atom 19807
                          organic molecular entity 19807
                            organic group 18971
                              organic divalent group 18952
                                organodiyl group 18952
                                  carbonyl group 18905
                                    carbonyl compound 18905
                                      carboxylic acid 18622
                                        carboacyl group 17704
                                          univalent carboacyl group 17704
                                            formyl group 8945
                                              aldehyde 8945
                                                heteroarenecarbaldehyde 23
                                                  pyridinecarbaldehyde 23
                                                    isopyridoxal 0
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