<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-06-03 12:58:30 UTC</creation_date>
  <update_date>2026-08-18 16:42:06 UTC</update_date>
  <accession/>
  <common_name>benzidine-2,2'-disulphonic acid</common_name>
  <class>SmallMolecule</class>
  <description>Benzidine-2,2'-disulphonic acid is an organic compound with the formula C12H12N2O6S2 and an average molecular weight of 344.36 g/mol. benzidine-2,2'-disulphonic acid belongs to the biphenyls and derivatives, a subclass of benzene and substituted derivatives within the organic compounds.

The compound is found in or released from 23 recorded sources. Within aquatic systems and sediments, it is present in seawater, freshwater, surface water, and groundwater. It is also detected in drinking water and water supply sources, including tap water, bottled water, desalinated water, and drinking water. In the sector of wastewater, sanitation, and biosolids, it is found in wastewater, unspecified wastewater, mine wastewater, industrial wastewater, and wastewater treatment effluent. Additionally, the substance is associated with marine, shipping, and aquaculture through bilge water and ballast water. In the realm of electrical and electronic equipment, it is linked to electrodes, fixed capacitors and their manufacture, and conductors or conductive bodies characterised by the conductive materials. It is also found in appliances, HVAC, and refrigerants, specifically in water heaters and water coolers, as well as in four more sectors. Recorded exposure routes for this compound include oral, inhalation, and touch.</description>
  <categories/>
  <types>
    <type>PMT</type>
  </types>
  <synonyms/>
  <chemical_formula>C12H12N2O6S2</chemical_formula>
  <average_molecular_weight>344.36</average_molecular_weight>
  <monisotopic_moleculate_weight>344.013678462</monisotopic_moleculate_weight>
  <iupac_name>4,4'-diamino-[1,1'-biphenyl]-2,2'-disulfonic acid</iupac_name>
  <traditional_iupac>4,4'-diamino-[1,1'-biphenyl]-2,2'-disulfonic acid</traditional_iupac>
  <cas_registry_number>117-61-3</cas_registry_number>
  <smiles>NC1=CC(=C(C=C1)C1=C(C=C(N)C=C1)S(O)(=O)=O)S(O)(=O)=O</smiles>
  <inchi>InChI=1S/C12H12N2O6S2/c13-7-1-3-9(11(5-7)21(15,16)17)10-4-2-8(14)6-12(10)22(18,19)20/h1-6H,13-14H2,(H,15,16,17)(H,18,19,20)</inchi>
  <inchikey>MBJAPGAZEWPEFB-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Benzenoids</super_class>
    <class>Benzene and substituted derivatives</class>
    <sub_class>Biphenyls and derivatives</sub_class>
    <direct_parent>Benzidines</direct_parent>
    <alternate_parents>
      <alternative_parent>1-sulfo,2-unsubstituted aromatic compounds</alternative_parent>
      <alternative_parent>Aniline and substituted anilines</alternative_parent>
      <alternative_parent>Benzenesulfonic acids and derivatives</alternative_parent>
      <alternative_parent>Benzenesulfonyl compounds</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Organosulfonic acids</alternative_parent>
      <alternative_parent>Primary amines</alternative_parent>
      <alternative_parent>Sulfonyls</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>1-sulfo,2-unsubstituted aromatic compound</substituent>
      <substituent>Amine</substituent>
      <substituent>Aniline or substituted anilines</substituent>
      <substituent>Aromatic homomonocyclic compound</substituent>
      <substituent>Arylsulfonic acid or derivatives</substituent>
      <substituent>Benzenesulfonate</substituent>
      <substituent>Benzenesulfonyl group</substituent>
      <substituent>Benzidine</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organic sulfonic acid or derivatives</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Organosulfonic acid</substituent>
      <substituent>Organosulfonic acid or derivatives</substituent>
      <substituent>Organosulfur compound</substituent>
      <substituent>Primary amine</substituent>
      <substituent>Sulfonyl</substituent>
    </substituents>
    <molecular_framework>Aromatic homomonocyclic compounds</molecular_framework>
    <descriptors/>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways/>
  <state/>
  <appearance/>
  <experimental_properties>
    <property>
      <kind>logp</kind>
      <value>-0.3</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>-2.04</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-2.84</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>4.95e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>-0.12</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>-3.8</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>3.47</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>4,4'-diamino-[1,1'-biphenyl]-2,2'-disulfonic acid</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>344.36</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>344.013678462</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>NC1=CC(=C(C=C1)C1=C(C=C(N)C=C1)S(O)(=O)=O)S(O)(=O)=O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C12H12N2O6S2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C12H12N2O6S2/c13-7-1-3-9(11(5-7)21(15,16)17)10-4-2-8(14)6-12(10)22(18,19)20/h1-6H,13-14H2,(H,15,16,17)(H,18,19,20)</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>MBJAPGAZEWPEFB-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>160.78</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>81.84</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>30.86</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>8</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>4</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/>
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  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>8337</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>8034</chemspider_id>
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  <general_references/>
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</compound>
