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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:p-nitrophenyl butyrate
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Accession:CHEBI:85867 term browser browse the term
Definition:A butyrate ester resulting from the formal condensation of the hydroxy group of 4-nitrophenol with the carboxy group of butyric acid.
Synonyms:exact_synonym: 4-nitrophenyl butyrate
 related_synonym: 4-nitrophenyl butanoate;   Formula=C10H11NO4;   InChI=1S/C10H11NO4/c1-2-3-10(12)15-9-6-4-8(5-7-9)11(13)14/h4-7H,2-3H2,1H3;   InChIKey=DVDUMIQZEUTAGK-UHFFFAOYSA-N;   PNPB;   SMILES=CCCC(=O)Oc1ccc(cc1)[N+]([O-])=O;   p-nitrophenol butyrate;   p-nitrophenyl butanoate;   pNP-butyrate;   para-nitrophenyl butyrate
 xref: CAS:2635-84-9
 xref_mesh: MESH:C033592
 xref: MetaCyc:CPD0-2413;   PMID:13032041;   PMID:25633600;   PMID:2794798;   PMID:4015714;   PMID:4052438;   PMID:6895751;   PMID:7107600;   Reaxys:1879729

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p-nitrophenyl butyrate term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Ces1d carboxylesterase 1D multiple interactions
increases hydrolysis
ISO CES1 protein binds to and results in increased hydrolysis of 4-nitrophenyl butyrate
CES1 protein results in increased hydrolysis of 4-nitrophenyl butyrate
CTD PMID:11950785 PMID:16282638 NCBI chr19:15,195,514...15,239,827
Ensembl chr19:15,033,108...15,239,821
JBrowse link
G Ces3a carboxylesterase 3a increases hydrolysis ISO CES3 protein results in increased hydrolysis of 4-nitrophenyl butyrate CTD PMID:11950785 NCBI chr19:37,070,705...37,079,411 JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19875
    chemical entity 19875
      group 19787
        inorganic group 19219
          nitro group 7290
            nitro compound 7290
              C-nitro compound 6890
                p-nitrophenyl butyrate 2
Path 2
Term Annotations click to browse term
  CHEBI ontology 19875
    subatomic particle 19873
      composite particle 19873
        hadron 19873
          baryon 19873
            nucleon 19873
              atomic nucleus 19873
                atom 19873
                  main group element atom 19763
                    p-block element atom 19763
                      carbon group element atom 19668
                        carbon atom 19657
                          organic molecular entity 19657
                            organic group 18569
                              organic divalent group 18560
                                organodiyl group 18560
                                  carbonyl group 18468
                                    carbonyl compound 18468
                                      carboxylic acid 18142
                                        monocarboxylic acid 17513
                                          fatty acid 16028
                                            short-chain fatty acid 15710
                                              fatty acid 4:0 7837
                                                butyric acid 6195
                                                  butyrate ester 1758
                                                    p-nitrophenyl butyrate 2
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