<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2026-04-03 12:55:09 UTC</creation_date>
  <update_date>2026-08-23 04:22:01 UTC</update_date>
  <accession/>
  <common_name>Butanoic acid, ethenyl ester</common_name>
  <class>SmallMolecule</class>
  <description>Butanoic acid, ethenyl ester is an organic compound with the formula C6H10O2 and an average molecular weight of 114.14 g/mol. Butanoic acid, ethenyl ester belongs to the fatty acid esters, a subclass of fatty acyls within the organic compounds.

This substance has been identified in or released from 43 recorded sources across several categories. Within electrical and electronic equipment, it is associated with amplifiers, antennas, auxiliary devices, coils, and adjustable resistors. In the building and construction sector, it is found in floors, ceilings, roofs, fencing, and sunshades awnings or outside screens, among two other sources. Its presence is also noted in household cleaning and consumer products, including soap dispensers, bleaching agents, pipe accessories, cigar cigarettes, and non electric simulated smoking devices, along with two additional sources. Furthermore, the compound is linked to food, food processing and cookware, specifically in the treatment of hops, processing meats, fermentation processes for beer, and food contact materials. It is also found in household items such as key rings. Recorded routes of exposure for this compound include touch, oral, and inhalation.</description>
  <categories/>
  <types/>
  <synonyms>
    <synonym>123206</synonym>
    <synonym>204-609-4</synonym>
    <synonym>Butanoic acid ethenyl ester</synonym>
    <synonym>Butanoic acid, ethenyl ester</synonym>
    <synonym>Butanoic acid, ethenyl ester (9CI)</synonym>
    <synonym>Butanoic acid, ethenylester</synonym>
    <synonym>butyric acid vinyl ester</synonym>
    <synonym>Butyric acid, vinyl ester</synonym>
    <synonym>ET7000000</synonym>
    <synonym>ethenyl butanoate</synonym>
    <synonym>n-Butyric acid vinyl ester</synonym>
    <synonym>see 995032</synonym>
    <synonym>UN 2838</synonym>
    <synonym>Vinyl butanoate</synonym>
    <synonym>Vinyl butyrate</synonym>
    <synonym>Vinyl butyrate, inhibited</synonym>
    <synonym>Vinyl butyrate, inhibited [UN2838]  [Flammable liquid]</synonym>
    <synonym>Vinyl butyratesee</synonym>
    <synonym>VINYLBUTYRATE</synonym>
    <synonym>Vinylester kyseliny maselne</synonym>
    <synonym>WLN: 3VO1U1</synonym>
    <synonym>[123-20-6]</synonym>
  </synonyms>
  <chemical_formula>C6H10O2</chemical_formula>
  <average_molecular_weight>114.144</average_molecular_weight>
  <monisotopic_moleculate_weight>114.06808</monisotopic_moleculate_weight>
  <iupac_name>ethenyl butanoate</iupac_name>
  <traditional_iupac>vinyl butyrate</traditional_iupac>
  <cas_registry_number>123-20-6</cas_registry_number>
  <smiles>CCCC(=O)OC=C</smiles>
  <inchi>InChI=1S/C6H10O2/c1-3-5-6(7)8-4-2/h4H,2-3,5H2,1H3</inchi>
  <inchikey>MEGHWIAOTJPCHQ-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Lipids and lipid-like molecules</super_class>
    <class>Fatty Acyls</class>
    <sub_class>Fatty acid esters</sub_class>
    <direct_parent>Fatty acid esters</direct_parent>
    <alternate_parents>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Enol esters</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Monocarboxylic acids and derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>Aliphatic acyclic compound</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Carboxylic acid ester</substituent>
      <substituent>Enol ester</substituent>
      <substituent>Fatty acid ester</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Monocarboxylic acid or derivatives</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
    </substituents>
    <molecular_framework>Aliphatic acyclic compounds</molecular_framework>
    <descriptors/>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways/>
  <state/>
  <appearance/>
  <experimental_properties>
    <property>
      <kind>logp</kind>
      <value>1.4</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>1.84</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-0.90</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>1.43e+01 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>1.57</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-7.2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>ethenyl butanoate</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>114.144</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>114.06808</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>CCCC(=O)OC=C</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C6H10O2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C6H10O2/c1-3-5-6(7)8-4-2/h4H,2-3,5H2,1H3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>MEGHWIAOTJPCHQ-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>26.3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>30.33</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>12.35</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>4</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>physiological_charge</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formal_charge</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
  </predicted_properties>
  <route_of_exposure/>
  <mechanism_of_toxicity/>
  <metabolism/>
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  <lethaldose/>
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  <use_source/>
  <min_risk_level/>
  <health_effects>#&lt;HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f727d764250&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>31247</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>28987</chemspider_id>
  <kegg_id/>
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</compound>
