<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2026-04-03 17:04:12 UTC</creation_date>
  <update_date>2026-08-24 23:53:03 UTC</update_date>
  <accession/>
  <common_name>2-Chlorostyrene</common_name>
  <class>SmallMolecule</class>
  <description>2-Chlorostyrene is an organic compound with the chemical formula C8H7Cl1 and an average molecular weight of 138.59 g/mol. 2-Chlorostyrene belongs to the styrenes, a subclass of benzene and substituted derivatives within the organic compounds. It is further categorized under the superclass of benzenoids.

This substance has been identified in or released from 35 recorded sources across several diverse categories. Within electrical and electronic equipment, it is associated with antennas, auxiliary devices, coils, contacts, and communication cables or conductors, among 15 other sources. Its presence is also noted in building and construction materials, specifically in ceilings, floors, roofs, fencing, and tents or canopies. In the realm of household items, it is found in credit card holders. Additionally, 2-chlorostyrene is linked to food, food processing, and cookware, including the processing of meats and fish. Finally, it is released from household cleaning and consumer products, such as bleaching agents, pipe accessories, cigar cigarettes, non electric simulated smoking devices, other smoking requisites, and two further sources.</description>
  <categories/>
  <types/>
  <synonyms>
    <synonym>1-chloro-2-ethenyl-benzene</synonym>
    <synonym>1-chloro-2-ethenylbenzene</synonym>
    <synonym>1-chloro-2-vinyl-benzene</synonym>
    <synonym>1-Chloro-2-vinylbenzene</synonym>
    <synonym>1-Chloro-2-vinylbenzene, 1-Chloro-2-ethenylbenzene</synonym>
    <synonym>2-Chlorostyrene</synonym>
    <synonym>2-Chlorostyrene (stabilized with TBC)</synonym>
    <synonym>2-Chlorostyrene 10 Ãƒâ€šÃ‚Âµg/mL in Cyclohexane</synonym>
    <synonym>2038863</synonym>
    <synonym>Benzene, 1-chloro-2-ethenyl-</synonym>
    <synonym>Benzene, 1-chloro-2-ethenyl- (9CI)</synonym>
    <synonym>Chlorostyrene</synonym>
    <synonym>chlorovinylbenzene</synonym>
    <synonym>EINECS 218-026-8</synonym>
    <synonym>InChI=1/C8H7Cl/c1-2-7-5-3-4-6-8(7)9/h2-6H,1H</synonym>
    <synonym>O-CHLOROSTYRENE</synonym>
    <synonym>ortho-Chlorostyrene</synonym>
    <synonym>POLY(2-CHLOROSTYRENE)</synonym>
    <synonym>QA-4416</synonym>
    <synonym>Stryene, o-chloro-</synonym>
    <synonym>styrene, 2-chloro-</synonym>
    <synonym>styrene, chloro-</synonym>
    <synonym>Styrene, o-chloro-</synonym>
    <synonym>UNII-ZA43R4Q315</synonym>
    <synonym>UNII:ZA43R4Q315</synonym>
    <synonym>[2039-87-4]</synonym>
  </synonyms>
  <chemical_formula>C8H7Cl1</chemical_formula>
  <average_molecular_weight>138.59</average_molecular_weight>
  <monisotopic_moleculate_weight>138.023628</monisotopic_moleculate_weight>
  <iupac_name/>
  <traditional_iupac/>
  <cas_registry_number>2039-87-4</cas_registry_number>
  <smiles>ClC1=CC=CC=C1C=C</smiles>
  <inchi>InChI=1S/C8H7Cl/c1-2-7-5-3-4-6-8(7)9/h2-6H,1H2</inchi>
  <inchikey>ISRGONDNXBCDBM-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom/>
    <super_class/>
    <class/>
    <sub_class/>
    <direct_parent/>
    <alternate_parents/>
    <substituents/>
    <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>3.4</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>average_mass</kind>
      <value>138.59</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>138.023628</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>ClC1=CC=CC=C1C=C</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C8H7Cl1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C8H7Cl/c1-2-7-5-3-4-6-8(7)9/h2-6H,1H2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>ISRGONDNXBCDBM-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
  </predicted_properties>
  <route_of_exposure/>
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  <metabolism/>
  <toxicity/>
  <lethaldose/>
  <carcinogenicity/>
  <use_source/>
  <min_risk_level/>
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  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>14906</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>14205</chemspider_id>
  <kegg_id/>
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  <biocyc_id/>
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  <general_references/>
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</compound>
