<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:06:31 UTC</creation_date>
  <update_date>2025-11-18 22:58:12 UTC</update_date>
  <accession>FDB005083</accession>
  <name>3-Methylbut-1-ene</name>
  <description>3-methylbut-1-ene, also known as alpha-isoamylene or (ch3)2chch=ch2, is a member of the class of compounds known as unsaturated aliphatic hydrocarbons. Unsaturated aliphatic hydrocarbons are aliphatic Hydrocarbons that contains one or more unsaturated carbon atoms. These compounds contain one or more double or triple bonds. 3-methylbut-1-ene can be found in sweet orange, which makes 3-methylbut-1-ene a potential biomarker for the consumption of this food product. 3-methylbut-1-ene is a non-carcinogenic (not listed by IARC) potentially toxic compound. Treatment is mainly symptomatic and supportive. Gastric lavage, emesis, and the administration of activated charcoal should be avoided, as vomiting increases the risk of aspiration (A600) (T3DB).</description>
  <synonyms>
  </synonyms>
  <chemical_formula>C5H10</chemical_formula>
  <average_molecular_weight>70.1329</average_molecular_weight>
  <monisotopic_moleculate_weight>70.07825032</monisotopic_moleculate_weight>
  <iupac_name>3-methylbut-1-ene</iupac_name>
  <traditional_iupac>3-methyl-1-butene</traditional_iupac>
  <cas_registry_number>563-45-1</cas_registry_number>
  <smiles>CC(C)C=C</smiles>
  <inchi>InChI=1S/C5H10/c1-4-5(2)3/h4-5H,1H2,2-3H3</inchi>
  <inchikey>YHQXBTXEYZIYOV-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as unsaturated aliphatic hydrocarbons. These are aliphatic Hydrocarbons that contains one or more unsaturated carbon atoms. These compounds contain one or more double or triple bonds.</description>
    <direct_parent>Unsaturated aliphatic hydrocarbons</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Hydrocarbons</super_class>
    <class>Unsaturated hydrocarbons</class>
    <sub_class>Unsaturated aliphatic hydrocarbons</sub_class>
    <molecular_framework>Aliphatic acyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Alkenes</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Acyclic olefin</substituent>
      <substituent>Aliphatic acyclic compound</substituent>
      <substituent>Alkene</substituent>
      <substituent>Olefin</substituent>
      <substituent>Unsaturated aliphatic hydrocarbon</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>alkene</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>2.30</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-2.43</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.62e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>2.23</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>3-methylbut-1-ene</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>70.1329</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>70.07825032</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CC(C)C=C</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C5H10</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C5H10/c1-4-5(2)3/h4-5H,1H2,2-3H3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>YHQXBTXEYZIYOV-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>24.8</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>9.32</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>0</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>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::EiMs</type>
      <spectrum_id>267</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>115296</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>129612</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>61575</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>61576</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>61577</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>118131</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>118132</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>118133</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3403429</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3403430</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3403431</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3403432</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3403433</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3403434</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id/>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id/>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
  </general_references>
  <foods>
    <food>
      <name>Sweet orange</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Citrus sinensis</name_scientific>
      <ncbi_taxonomy_id>2711</ncbi_taxonomy_id>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
