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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:15743 term browser browse the term
Definition:A member of the class of butanals that consists of propane bearing a formyl substituent at the 1-position. The parent of the class of butanals.
Synonyms:related_synonym: 1-Butanal;   Aldehyde butyrique;   Aldeide butirrica;   Butal;   Butaldehyde;   Butanaldehyde;   Butyl aldehyde;   Butylaldehyde;   Butyral;   Butyraldehyd;   Butyraldehyde;   Butyric aldehyde;   Butyrylaldehyde;   Formula=C4H8O;   InChI=1S/C4H8O/c1-2-3-4-5/h4H,2-3H2,1H3;   InChIKey=ZTQSAGDEMFDKMZ-UHFFFAOYSA-N;   SMILES=[H]C(=O)CCC;   butan-1-al;   n-Butanal;   n-Butyl aldehyde;   n-Butyraldehyde;   n-C3H7CHO
 alt_id: CHEBI:13923;   CHEBI:22938;   CHEBI:3233
 xref: CAS:123-72-8;   HMDB:HMDB0003543;   KEGG:C01412
 xref_mesh: MESH:C018475
 xref: MetaCyc:BUTANAL;   PMID:16347493;   PMID:20833537;   Reaxys:506061;   Wikipedia:Butanal

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    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19863
        role 19835
          application 19677
            indicator 8777
              biomarker 6584
                butanal 3331
                  4-acetamidobutanal 0
                  4-methylammoniobutanal 0
    Path 2
    Term Annotations click to browse term
      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
                                      carbon oxoacid 18642
                                        carboxylic acid 18639
                                          carboacyl group 17708
                                            univalent carboacyl group 17708
                                              formyl group 9004
                                                aldehyde 9004
                                                  butanals 3332
                                                    butanal 3331
                                                      4-acetamidobutanal 0
                                                      4-methylammoniobutanal 0
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