<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:05:57 UTC</creation_date>
  <update_date>2019-11-26 02:59:35 UTC</update_date>
  <accession>FDB003790</accession>
  <name>Tungsten</name>
  <description>Tungsten is a chemical element with the chemical symbol W and atomic number 74. Tungsten is the only metal from the third transition series that is known to occur in biomolecules, where it is used in a few species of bacteria. It is the heaviest element known to be used by any living organism. Tungsten interferes with molybdenum and copper metabolism, and is somewhat toxic to animal life. [Wikipedia]. Tungsten is found in many foods, some of which are orange bell pepper, black walnut, parsnip, and eggplant.</description>
  <synonyms>
    <synonym>Tungsten ion</synonym>
    <synonym>Tungsten, elemental</synonym>
    <synonym>Tungsten, ion (W6+)</synonym>
    <synonym>Tungsten, ion(W4 )</synonym>
    <synonym>Tungsten, ion(W6 )</synonym>
    <synonym>Tungsten(4+)</synonym>
    <synonym>Tungsten(4+) ion</synonym>
    <synonym>Tungsten(5+)</synonym>
    <synonym>Tungsten(5+) ion</synonym>
    <synonym>Tungsten(6+)</synonym>
    <synonym>Tungsten(6+) ion</synonym>
    <synonym>Tungsten(IV) cation</synonym>
    <synonym>Tungsten(v) cation</synonym>
    <synonym>Tungsten(vi) cation</synonym>
    <synonym>Tungstene</synonym>
    <synonym>Tunsten</synonym>
    <synonym>W(4+)</synonym>
    <synonym>Wolfram</synonym>
    <synonym>Wolframium</synonym>
  </synonyms>
  <chemical_formula>W</chemical_formula>
  <average_molecular_weight>183.84</average_molecular_weight>
  <monisotopic_moleculate_weight>183.950932553</monisotopic_moleculate_weight>
  <iupac_name>tungsten</iupac_name>
  <traditional_iupac>tungsten</traditional_iupac>
  <cas_registry_number>7440-33-7</cas_registry_number>
  <smiles>[W]</smiles>
  <inchi>InChI=1S/W</inchi>
  <inchikey>WFKWXMTUELFFGS-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of inorganic compounds known as homogeneous transition metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a transition metal atom.</description>
    <direct_parent>Homogeneous transition metal compounds</direct_parent>
    <kingdom>Inorganic compounds</kingdom>
    <super_class>Homogeneous metal compounds</super_class>
    <class>Homogeneous transition metal compounds</class>
    <sub_class/>
    <molecular_framework/>
    <alternative_parents>
    </alternative_parents>
    <substituents>
      <substituent>Homogeneous transition metal</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>chromium group element atom</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state>Solid</state>
  <predicted_properties>
  </predicted_properties>
  <experimental_properties>
    <property>
      <kind>melting_point</kind>
      <value>3410 oC</value>
    </property>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>tungsten</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>183.84</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>183.950932553</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>[W]</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>W</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/W</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>WFKWXMTUELFFGS-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>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>1.78</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>0</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>
  </spectra>
  <hmdb_id>HMDB01989</hmdb_id>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id/>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
    <reference>#&lt;Reference:0x000055ce317181a8&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31717f78&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31717d70&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31717bb8&gt;</reference>
  </general_references>
  <foods>
    <food>
      <name>Almond</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Prunus dulcis</name_scientific>
      <ncbi_taxonomy_id>3755</ncbi_taxonomy_id>
      <average_value>0.01</average_value>
      <max_value>0.01</max_value>
      <min_value>0.01</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Black walnut</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Juglans nigra</name_scientific>
      <ncbi_taxonomy_id>16719</ncbi_taxonomy_id>
      <average_value>0.01</average_value>
      <max_value>0.01</max_value>
      <min_value>0.01</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Brazil nut</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bertholletia excelsa</name_scientific>
      <ncbi_taxonomy_id>3645</ncbi_taxonomy_id>
      <average_value>0.01</average_value>
      <max_value>0.01</max_value>
      <min_value>0.01</min_value>
      <unit>mg/100 g</unit>
    </food>
    <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>
      <average_value>0.0053</average_value>
      <max_value>0.0053</max_value>
      <min_value>0.0053</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Butternut</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Juglans cinerea</name_scientific>
      <ncbi_taxonomy_id>91214</ncbi_taxonomy_id>
      <average_value>0.008</average_value>
      <max_value>0.008</max_value>
      <min_value>0.008</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Carrot</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Daucus carota ssp. sativus</name_scientific>
      <ncbi_taxonomy_id>79200</ncbi_taxonomy_id>
      <average_value>0.0018</average_value>
      <max_value>0.0019</max_value>
      <min_value>0.0017</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Cashew nut</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anacardium occidentale</name_scientific>
      <ncbi_taxonomy_id>171929</ncbi_taxonomy_id>
      <average_value>0.01</average_value>
      <max_value>0.01</max_value>
      <min_value>0.01</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Coconut</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cocos nucifera</name_scientific>
      <ncbi_taxonomy_id>13894</ncbi_taxonomy_id>
      <average_value>0.03</average_value>
      <max_value>0.03</max_value>
      <min_value>0.03</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Common hazelnut</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Corylus avellana</name_scientific>
      <ncbi_taxonomy_id>13451</ncbi_taxonomy_id>
      <average_value>0.002</average_value>
      <max_value>0.002</max_value>
      <min_value>0.002</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Cucumber</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cucumis sativus</name_scientific>
      <ncbi_taxonomy_id>3659</ncbi_taxonomy_id>
      <average_value>0.000593</average_value>
      <max_value>0.001</max_value>
      <min_value>0.000316141</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Dill</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anethum graveolens</name_scientific>
      <ncbi_taxonomy_id>40922</ncbi_taxonomy_id>
      <average_value>0.0026</average_value>
      <max_value>0.003</max_value>
      <min_value>0.0022</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Eggplant</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Solanum melongena</name_scientific>
      <ncbi_taxonomy_id>4111</ncbi_taxonomy_id>
      <average_value>0.0012</average_value>
      <max_value>0.0012</max_value>
      <min_value>0.0012</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Garden onion</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Allium cepa</name_scientific>
      <ncbi_taxonomy_id>4679</ncbi_taxonomy_id>
      <average_value>0.000399</average_value>
      <max_value>0.000588996</max_value>
      <min_value>0.000208589</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Garden tomato</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Solanum lycopersicum</name_scientific>
      <ncbi_taxonomy_id>4081</ncbi_taxonomy_id>
      <average_value>0.0005</average_value>
      <max_value>0.0006</max_value>
      <min_value>0.0004</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Garlic</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Allium sativum</name_scientific>
      <ncbi_taxonomy_id>4682</ncbi_taxonomy_id>
      <average_value>0.00335</average_value>
      <max_value>0.0043</max_value>
      <min_value>0.0024</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Green bell pepper</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capsicum annuum</name_scientific>
      <ncbi_taxonomy_id>4072</ncbi_taxonomy_id>
      <average_value>0.0009</average_value>
      <max_value>0.001</max_value>
      <min_value>0.0008</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Green zucchini</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cucurbita pepo var. cylindrica</name_scientific>
      <ncbi_taxonomy_id/>
      <average_value>0.000169</average_value>
      <max_value>0.000172344</max_value>
      <min_value>0.000165479</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Italian sweet red pepper</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capsicum annuum</name_scientific>
      <ncbi_taxonomy_id>4072</ncbi_taxonomy_id>
      <average_value>0.001</average_value>
      <max_value>0.0012</max_value>
      <min_value>0.0008</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Japanese pumpkin</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cucurbita maxima</name_scientific>
      <ncbi_taxonomy_id>3661</ncbi_taxonomy_id>
      <average_value>0.00095</average_value>
      <max_value>0.001</max_value>
      <min_value>0.0009</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Orange bell pepper</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capsicum annuum</name_scientific>
      <ncbi_taxonomy_id>4072</ncbi_taxonomy_id>
      <average_value>0.000233</average_value>
      <max_value>0.000251589</max_value>
      <min_value>0.000214026</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Parsnip</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Pastinaca sativa</name_scientific>
      <ncbi_taxonomy_id>4041</ncbi_taxonomy_id>
      <average_value>0.001508</average_value>
      <max_value>0.001566074</max_value>
      <min_value>0.001449817</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Pistachio</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Pistacia vera</name_scientific>
      <ncbi_taxonomy_id>55513</ncbi_taxonomy_id>
      <average_value>0.01</average_value>
      <max_value>0.01</max_value>
      <min_value>0.01</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Potato</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Solanum tuberosum</name_scientific>
      <ncbi_taxonomy_id>4113</ncbi_taxonomy_id>
      <average_value>0.00195</average_value>
      <max_value>0.0023</max_value>
      <min_value>0.0016</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Red beetroot</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Beta vulgaris var. rubra</name_scientific>
      <ncbi_taxonomy_id/>
      <average_value>0.0009</average_value>
      <max_value>0.001</max_value>
      <min_value>0.0008</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Red bell pepper</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capsicum annuum</name_scientific>
      <ncbi_taxonomy_id>4072</ncbi_taxonomy_id>
      <average_value>0.000241</average_value>
      <max_value>0.000247567</max_value>
      <min_value>0.000235119</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Romaine lettuce</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Lactuca sativa L. var. longifolia</name_scientific>
      <ncbi_taxonomy_id/>
      <average_value>0.000475</average_value>
      <max_value>0.00069568</max_value>
      <min_value>0.000228765</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Spinach</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Spinacia oleracea</name_scientific>
      <ncbi_taxonomy_id>3562</ncbi_taxonomy_id>
      <average_value>0.00195</average_value>
      <max_value>0.0022</max_value>
      <min_value>0.0017</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Sunburst squash (pattypan squash)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cucurbita pepo var. clypeata</name_scientific>
      <ncbi_taxonomy_id/>
      <average_value>0.000778</average_value>
      <max_value>0.000969774</max_value>
      <min_value>0.0006</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Turnip</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Brassica rapa var. rapa</name_scientific>
      <ncbi_taxonomy_id>51350</ncbi_taxonomy_id>
      <average_value>0.00105</average_value>
      <max_value>0.0013</max_value>
      <min_value>0.0008</min_value>
      <unit>mg/100 g</unit>
    </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/>
      <average_value>0.0007</average_value>
      <max_value>0.0008</max_value>
      <min_value>0.0006</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Yellow bell pepper</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capsicum annuum</name_scientific>
      <ncbi_taxonomy_id>4072</ncbi_taxonomy_id>
      <average_value>0.000203</average_value>
      <max_value>0.000254735</max_value>
      <min_value>0.000151154</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Yellow zucchini</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cucurbita pepo var. cylindrica</name_scientific>
      <ncbi_taxonomy_id/>
      <average_value>0.00065</average_value>
      <max_value>0.0007</max_value>
      <min_value>0.0006</min_value>
      <unit>mg/100 g</unit>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
