<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:08:23 UTC</creation_date>
  <update_date>2025-11-18 23:14:57 UTC</update_date>
  <accession>FDB009045</accession>
  <name>2-Butylisothiocyanate</name>
  <description>2-butylisothiocyanate is a member of the class of compounds known as isothiocyanates. Isothiocyanates are organic compounds containing the isothiocyanate group, an isocyanate analogue with the general formula RN=C=S. 2-butylisothiocyanate is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 2-butylisothiocyanate is a green tasting compound and can be found in a number of food items such as white cabbage, broccoli, brussel sprouts, and cabbage, which makes 2-butylisothiocyanate a potential biomarker for the consumption of these food products. </description>
  <synonyms>
    <synonym>2-Butyl isothiocyanate</synonym>
    <synonym>2-Isothiocyanatobutane</synonym>
    <synonym>Isothiocyanic acid, sec-butyl ester</synonym>
    <synonym>Sec-butyl isothiocyanate</synonym>
  </synonyms>
  <chemical_formula>C5H9NS</chemical_formula>
  <average_molecular_weight>115.197</average_molecular_weight>
  <monisotopic_moleculate_weight>115.045569983</monisotopic_moleculate_weight>
  <iupac_name>2-isothiocyanatobutane</iupac_name>
  <traditional_iupac>butane, 2-isothiocyanato-</traditional_iupac>
  <cas_registry_number>4426-79-3</cas_registry_number>
  <smiles>CCC(C)N=C=S</smiles>
  <inchi>InChI=1S/C5H9NS/c1-3-5(2)6-4-7/h5H,3H2,1-2H3</inchi>
  <inchikey>TUFJIDJGIQOYFY-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as isothiocyanates. These are organic compounds containing the isothiocyanate group, an isocyanate analogue with the general formula RN=C=S.</description>
    <direct_parent>Isothiocyanates</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organosulfur compounds</super_class>
    <class>Isothiocyanates</class>
    <sub_class/>
    <molecular_framework>Aliphatic acyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Organonitrogen compounds</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Propargyl-type 1,3-dipolar organic compounds</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Aliphatic acyclic compound</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Isothiocyanate</substituent>
      <substituent>Organic 1,3-dipolar compound</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Propargyl-type 1,3-dipolar organic compound</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>2.86</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-2.46</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>4.03e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>2.37</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-3.2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>2-isothiocyanatobutane</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>115.197</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>115.045569983</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CCC(C)N=C=S</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C5H9NS</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C5H9NS/c1-3-5(2)6-4-7/h5H,3H2,1-2H3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>TUFJIDJGIQOYFY-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>12.36</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>35.02</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>13.01</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>2</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>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::EiMs</type>
      <spectrum_id>1883</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>78783</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>78784</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>78785</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>139233</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>139234</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>139235</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3604819</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3604820</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3604821</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3604822</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3604823</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3604824</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>Broccoli</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Brassica oleracea var. italica</name_scientific>
      <ncbi_taxonomy_id>36774</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Brussel sprouts</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Brassica oleracea var. gemmifera</name_scientific>
      <ncbi_taxonomy_id>178616</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Cabbage</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Brassica oleracea var. capitata</name_scientific>
      <ncbi_taxonomy_id>3716</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Horseradish</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Armoracia rusticana</name_scientific>
      <ncbi_taxonomy_id>3704</ncbi_taxonomy_id>
    </food>
    <food>
      <name>White cabbage</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Brassica oleracea L. var. capitata L. f. alba DC.</name_scientific>
      <ncbi_taxonomy_id/>
    </food>
  </foods>
  <flavors>
    <flavor>
      <name>green</name>
    </flavor>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
