<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:06:14 UTC</creation_date>
  <update_date>2025-11-18 22:56:18 UTC</update_date>
  <accession>FDB004435</accession>
  <name>6-Keto-28-homobrassinolide</name>
  <description>6-keto-28-homobrassinolide belongs to stigmastanes and derivatives class of compounds. Those are sterol lipids with a structure based on the stigmastane skeleton, which consists of a cholestane moiety bearing an ethyl group at the carbon atom C24. 6-keto-28-homobrassinolide is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). 6-keto-28-homobrassinolide can be found in tea, which makes 6-keto-28-homobrassinolide a potential biomarker for the consumption of this food product. </description>
  <synonyms>
  </synonyms>
  <chemical_formula>C29H50O5</chemical_formula>
  <average_molecular_weight>478.7043</average_molecular_weight>
  <monisotopic_moleculate_weight>478.36582471</monisotopic_moleculate_weight>
  <iupac_name>(1S,2R,4R,5S,7S,10S,11S,14R,15S)-14-[(2S,3R,4R,5R)-5-ethyl-3,4-dihydroxy-6-methylheptan-2-yl]-4,5-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-8-one</iupac_name>
  <traditional_iupac>(1S,2R,4R,5S,7S,10S,11S,14R,15S)-14-[(2S,3R,4R,5R)-5-ethyl-3,4-dihydroxy-6-methylheptan-2-yl]-4,5-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-8-one</traditional_iupac>
  <cas_registry_number/>
  <smiles>[H][C@@]12CC[C@H]([C@H](C)[C@@H](O)[C@H](O)[C@H](CC)C(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC(=O)[C@@]2([H])C[C@H](O)[C@H](O)C[C@]12C</smiles>
  <inchi>InChI=1S/C29H50O5/c1-7-17(15(2)3)27(34)26(33)16(4)19-8-9-20-18-12-23(30)22-13-24(31)25(32)14-29(22,6)21(18)10-11-28(19,20)5/h15-22,24-27,31-34H,7-14H2,1-6H3/t16-,17+,18-,19+,20-,21-,22+,24-,25+,26+,27+,28+,29+/m0/s1</inchi>
  <inchikey>WADMTJKRYLAHQV-JZSPVGNFSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as stigmastanes and derivatives. These are sterol lipids with a structure based on the stigmastane skeleton, which consists of a cholestane moiety bearing an ethyl group at the carbon atom C24.</description>
    <direct_parent>Stigmastanes and derivatives</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Lipids and lipid-like molecules</super_class>
    <class>Steroids and steroid derivatives</class>
    <sub_class>Stigmastanes and derivatives</sub_class>
    <molecular_framework>Aliphatic homopolycyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>3-alpha-hydroxysteroids</alternative_parent>
      <alternative_parent>6-oxosteroids</alternative_parent>
      <alternative_parent>C24-propyl sterols and derivatives</alternative_parent>
      <alternative_parent>Cyclic alcohols and derivatives</alternative_parent>
      <alternative_parent>Ecdysteroids</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Ketones</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Secondary alcohols</alternative_parent>
      <alternative_parent>Tetrahydroxy bile acids, alcohols and derivatives</alternative_parent>
      <alternative_parent>Triterpenoids</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>2-hydroxysteroid</substituent>
      <substituent>22-hydroxysteroid</substituent>
      <substituent>23-hydroxysteroid</substituent>
      <substituent>3-alpha-hydroxysteroid</substituent>
      <substituent>3-hydroxysteroid</substituent>
      <substituent>6-oxosteroid</substituent>
      <substituent>Alcohol</substituent>
      <substituent>Aliphatic homopolycyclic compound</substituent>
      <substituent>Bile acid, alcohol, or derivatives</substituent>
      <substituent>C24-propyl-sterol-skeleton</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Cyclic alcohol</substituent>
      <substituent>Ecdysteroid</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Hydroxy bile acid, alcohol, or derivatives</substituent>
      <substituent>Hydroxysteroid</substituent>
      <substituent>Ketone</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Oxosteroid</substituent>
      <substituent>Secondary alcohol</substituent>
      <substituent>Stigmastane-skeleton</substituent>
      <substituent>Tetrahydroxy bile acid, alcohol, or derivatives</substituent>
      <substituent>Triterpenoid</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>3.27</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-4.26</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.61e-02 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>3.95</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>13.45</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-3.2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>(1S,2R,4R,5S,7S,10S,11S,14R,15S)-14-[(2S,3R,4R,5R)-5-ethyl-3,4-dihydroxy-6-methylheptan-2-yl]-4,5-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-8-one</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>478.7043</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>478.36582471</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>[H][C@@]12CC[C@H]([C@H](C)[C@@H](O)[C@H](O)[C@H](CC)C(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC(=O)[C@@]2([H])C[C@H](O)[C@H](O)C[C@]12C</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C29H50O5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C29H50O5/c1-7-17(15(2)3)27(34)26(33)16(4)19-8-9-20-18-12-23(30)22-13-24(31)25(32)14-29(22,6)21(18)10-11-28(19,20)5/h15-22,24-27,31-34H,7-14H2,1-6H3/t16-,17+,18-,19+,20-,21-,22+,24-,25+,26+,27+,28+,29+/m0/s1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>WADMTJKRYLAHQV-JZSPVGNFSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>97.99</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>133.82</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>56.71</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>4</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>47259</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>47260</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>47261</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>155643</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>155644</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>155645</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3600500</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3600501</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3600502</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3600503</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3600504</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3600505</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>Black tea</name>
      <food_type>Type 1</food_type>
      <category/>
      <name_scientific/>
      <ncbi_taxonomy_id/>
    </food>
    <food>
      <name>Green tea</name>
      <food_type>Type 1</food_type>
      <category/>
      <name_scientific/>
      <ncbi_taxonomy_id/>
    </food>
    <food>
      <name>Herbal tea</name>
      <food_type>Type 1</food_type>
      <category/>
      <name_scientific/>
      <ncbi_taxonomy_id/>
    </food>
    <food>
      <name>Red tea</name>
      <food_type>Type 1</food_type>
      <category/>
      <name_scientific/>
      <ncbi_taxonomy_id/>
    </food>
    <food>
      <name>Tea</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Camellia sinensis</name_scientific>
      <ncbi_taxonomy_id>4442</ncbi_taxonomy_id>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
