<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:05:53 UTC</creation_date>
  <update_date>2025-11-18 22:53:20 UTC</update_date>
  <accession>FDB003646</accession>
  <name>Methylcysteine sulfoxide</name>
  <description> Methylcysteine sulfoxide is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Methylcysteine sulfoxide can be found in soft-necked garlic, which makes methylcysteine sulfoxide a potential biomarker for the consumption of this food product. </description>
  <synonyms>
  </synonyms>
  <chemical_formula>C22H37NO5S2</chemical_formula>
  <average_molecular_weight>459.66</average_molecular_weight>
  <monisotopic_moleculate_weight>459.211315643</monisotopic_moleculate_weight>
  <iupac_name>2-(methylamino)-3-sulfanylpropanoic acid; 5-[2-(octane-1-sulfinyl)propyl]-2H-1,3-benzodioxole</iupac_name>
  <traditional_iupac>2-(methylamino)-3-sulfanylpropanoic acid; sulfoxide</traditional_iupac>
  <cas_registry_number/>
  <smiles>CNC(CS)C(O)=O.CCCCCCCCS(=O)C(C)CC1=CC2=C(OCO2)C=C1</smiles>
  <inchi>InChI=1S/C18H28O3S.C4H9NO2S/c1-3-4-5-6-7-8-11-22(19)15(2)12-16-9-10-17-18(13-16)21-14-20-17;1-5-3(2-8)4(6)7/h9-10,13,15H,3-8,11-12,14H2,1-2H3;3,5,8H,2H2,1H3,(H,6,7)</inchi>
  <inchikey>NLJMYOADVICNFV-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as cysteine and derivatives. Cysteine and derivatives are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.</description>
    <direct_parent>Cysteine and derivatives</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organic acids and derivatives</super_class>
    <class>Carboxylic acids and derivatives</class>
    <sub_class>Amino acids, peptides, and analogues</sub_class>
    <molecular_framework/>
    <alternative_parents>
      <alternative_parent>Acetals</alternative_parent>
      <alternative_parent>Alkylthiols</alternative_parent>
      <alternative_parent>Alpha amino acids</alternative_parent>
      <alternative_parent>Amino acids</alternative_parent>
      <alternative_parent>Benzenoids</alternative_parent>
      <alternative_parent>Benzodioxoles</alternative_parent>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Carboxylic acids</alternative_parent>
      <alternative_parent>Dialkylamines</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Monocarboxylic acids and derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Oxacyclic compounds</alternative_parent>
      <alternative_parent>Sulfinyl compounds</alternative_parent>
      <alternative_parent>Sulfoxides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Acetal</substituent>
      <substituent>Alkylthiol</substituent>
      <substituent>Alpha-amino acid</substituent>
      <substituent>Amine</substituent>
      <substituent>Amino acid</substituent>
      <substituent>Aromatic heteropolycyclic compound</substituent>
      <substituent>Benzenoid</substituent>
      <substituent>Benzodioxole</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxylic acid</substituent>
      <substituent>Cysteine or derivatives</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Monocarboxylic acid or derivatives</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Organosulfur compound</substituent>
      <substituent>Oxacycle</substituent>
      <substituent>Secondary aliphatic amine</substituent>
      <substituent>Secondary amine</substituent>
      <substituent>Sulfinyl compound</substituent>
      <substituent>Sulfoxide</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>4.39</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-4.07</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.76e-02 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>4.2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-4.7</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>2-(methylamino)-3-sulfanylpropanoic acid; 5-[2-(octane-1-sulfinyl)propyl]-2H-1,3-benzodioxole</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>459.66</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>459.211315643</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CNC(CS)C(O)=O.CCCCCCCCS(=O)C(C)CC1=CC2=C(OCO2)C=C1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C22H37NO5S2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C18H28O3S.C4H9NO2S/c1-3-4-5-6-7-8-11-22(19)15(2)12-16-9-10-17-18(13-16)21-14-20-17;1-5-3(2-8)4(6)7/h9-10,13,15H,3-8,11-12,14H2,1-2H3;3,5,8H,2H2,1H3,(H,6,7)</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>NLJMYOADVICNFV-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>35.53</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>92.47</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>37.48</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>13</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>3</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::MsMs</type>
      <spectrum_id>92364</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>92365</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>92366</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>155961</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>155962</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>155963</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>Soft-necked garlic</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Allium sativum L. var. sativum</name_scientific>
      <ncbi_taxonomy_id>4682</ncbi_taxonomy_id>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
