<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2026-04-03 09:04:50 UTC</creation_date>
  <update_date>2026-04-03 09:04:50 UTC</update_date>
  <accession/>
  <common_name>1,2-Anthracenedicarboxylic acid, 7-acetyl-6-ethyl-9,10-dihydro-3,5,8-trihydroxy-9,10-dioxo-</common_name>
  <class>SmallMolecule</class>
  <description>1,2-Anthracenedicarboxylic acid, 7-acetyl-6-ethyl-9,10-dihydro-3,5,8-trihydroxy-9,10-dioxo- belongs to the anthracenecarboxylic acids and derivatives, a subclass of anthracenes within the organic compounds. This benzenoid compound has the chemical formula C20H14O10 and an average molecular weight of 414.32 g/mol.

The compound has been identified in or released from 18 recorded sources. Within the category of electrical and electronic equipment, it is associated with antennas, auxiliary devices, coils, communication cables or conductors, adjustable resistors, and seven additional sources. It is also found in building and construction materials, specifically in ceilings, fencing, floors, and ladders, stairs and ramps. Additionally, the compound is linked to food, food processing and cookware, specifically in the preparation of wort.</description>
  <categories/>
  <types/>
  <synonyms>
    <synonym>1,2-ANTHRACENEDICARBOXYLIC ACID 7-ACETYL-6-ETHYL-9,10-DIHYDRO-3,5,8-TRIHYDROXY-9,10-DIOXO-</synonym>
    <synonym>1,2-Anthracenedicarboxylic acid, 7-acetyl-6-ethyl-9,10-dihydro-3, 5,8-trihydroxy-9,10-dioxo-</synonym>
    <synonym>1,2-Anthracenedicarboxylic acid, 7-acetyl-6-ethyl-9,10-dihydro-3,5,8-trihydroxy-9,10-dioxo-</synonym>
    <synonym>228-289-0</synonym>
    <synonym>7-Acetyl-6-ethyl-3,5,8-trihydroxy-9,10-dioxo-9,10-dihydro-1,2-anthracenedicarboxylic acid</synonym>
    <synonym>7-Acetyl-6-ethyl-3,5,8-trihydroxy-9,10-dioxo-9,10-dihydroanthracene-1,2-dicarboxylic acid</synonym>
    <synonym>7-acetyl-6-ethyl-9,10-dihydro-3,5,8-trihydroxy-9,10-dioxoanthracene-1,2-dicarboxylic acid</synonym>
    <synonym>C.I. Natural Red 25</synonym>
    <synonym>Caked Lac</synonym>
    <synonym>Grained Lac</synonym>
    <synonym>Gum Lacquer</synonym>
    <synonym>Kade Lakh</synonym>
    <synonym>Lac</synonym>
    <synonym>Lac Dye</synonym>
    <synonym>Lac Lac</synonym>
    <synonym>Laccaic acid</synonym>
    <synonym>Lake Lac</synonym>
    <synonym>Lakh</synonym>
    <synonym>Laque</synonym>
    <synonym>Rangbatti</synonym>
    <synonym>Seed Lac</synonym>
    <synonym>Shell Lac</synonym>
    <synonym>Stick Lac</synonym>
  </synonyms>
  <chemical_formula>C20H14O10</chemical_formula>
  <average_molecular_weight>414.322</average_molecular_weight>
  <monisotopic_moleculate_weight>414.058697</monisotopic_moleculate_weight>
  <iupac_name>7-acetyl-6-ethyl-3,5,8-trihydroxy-9,10-dioxo-9,10-dihydroanthracene-1,2-dicarboxylic acid</iupac_name>
  <traditional_iupac>laque</traditional_iupac>
  <cas_registry_number>6219-66-5</cas_registry_number>
  <smiles>CCC1=C(C(C)=O)C(O)=C2C(=O)C3=C(C=C(O)C(C(O)=O)=C3C(O)=O)C(=O)C2=C1O</smiles>
  <inchi>InChI=1S/C20H14O10/c1-3-6-9(5(2)21)17(25)14-13(15(6)23)16(24)7-4-8(22)11(19(27)28)12(20(29)30)10(7)18(14)26/h4,22-23,25H,3H2,1-2H3,(H,27,28)(H,29,30)</inchi>
  <inchikey>RHAXKFFKGZJUOE-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Benzenoids</super_class>
    <class>Anthracenes</class>
    <sub_class>Anthracenecarboxylic acids and derivatives</sub_class>
    <direct_parent>Anthracenecarboxylic acids</direct_parent>
    <alternate_parents>
      <alternative_parent>1-hydroxy-2-unsubstituted benzenoids</alternative_parent>
      <alternative_parent>Acetophenones</alternative_parent>
      <alternative_parent>Aryl alkyl ketones</alternative_parent>
      <alternative_parent>Carboxylic acids</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Hydroxyanthraquinones</alternative_parent>
      <alternative_parent>Naphthalenecarboxylic acids</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Polyols</alternative_parent>
      <alternative_parent>Salicylic acid and derivatives</alternative_parent>
      <alternative_parent>Vinylogous acids</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>1-hydroxy-2-unsubstituted benzenoid</substituent>
      <substituent>1-naphthalenecarboxylic acid</substituent>
      <substituent>1-naphthalenecarboxylic acid or derivatives</substituent>
      <substituent>2-naphthalenecarboxylic acid</substituent>
      <substituent>2-naphthalenecarboxylic acid or derivatives</substituent>
      <substituent>9,10-anthraquinone</substituent>
      <substituent>Acetophenone</substituent>
      <substituent>Anthracene carboxylic acid</substituent>
      <substituent>Anthraquinone</substituent>
      <substituent>Aromatic homopolycyclic compound</substituent>
      <substituent>Aryl alkyl ketone</substituent>
      <substituent>Aryl ketone</substituent>
      <substituent>Carboxylic acid</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Hydroxyanthraquinone</substituent>
      <substituent>Hydroxybenzoic acid</substituent>
      <substituent>Ketone</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Phenol</substituent>
      <substituent>Polyol</substituent>
      <substituent>Salicylic acid or derivatives</substituent>
      <substituent>Vinylogous acid</substituent>
    </substituents>
    <molecular_framework>Aromatic homopolycyclic compounds</molecular_framework>
    <descriptors/>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways/>
  <state/>
  <appearance/>
  <experimental_properties/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>1.91</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-3.22</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.48e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>4.44</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>1.36</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-4.8</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>7-acetyl-6-ethyl-3,5,8-trihydroxy-9,10-dioxo-9,10-dihydroanthracene-1,2-dicarboxylic acid</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>414.322</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>414.058697</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>CCC1=C(C(C)=O)C(O)=C2C(=O)C3=C(C=C(O)C(C(O)=O)=C3C(O)=O)C(=O)C2=C1O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C20H14O10</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C20H14O10/c1-3-6-9(5(2)21)17(25)14-13(15(6)23)16(24)7-4-8(22)11(19(27)28)12(20(29)30)10(7)18(14)26/h4,22-23,25H,3H2,1-2H3,(H,27,28)(H,29,30)</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>RHAXKFFKGZJUOE-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>186.5</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>101.65</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>38.93</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>4</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>10</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>5</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>physiological_charge</kind>
      <value>-2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formal_charge</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
  </predicted_properties>
  <route_of_exposure/>
  <mechanism_of_toxicity/>
  <metabolism/>
  <toxicity/>
  <lethaldose/>
  <carcinogenicity/>
  <use_source/>
  <min_risk_level/>
  <health_effects>#&lt;HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f7225ea3988&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>5355255</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>4511276</chemspider_id>
  <kegg_id/>
  <uniprot_id/>
  <omim_id/>
  <chebi_id/>
  <biocyc_id/>
  <ctd_id/>
  <stitch_id/>
  <actor_id/>
  <pdb_id/>
  <wikipidia/>
  <general_references/>
  <targets>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
  </targets>
</compound>
