<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-06-03 12:32:03 UTC</creation_date>
  <update_date>2026-08-20 01:12:45 UTC</update_date>
  <accession/>
  <common_name>octyl (R)-2-(4-chloro-2-methylphenoxy)propionate</common_name>
  <class>SmallMolecule</class>
  <description>octyl (R)-2-(4-chloro-2-methylphenoxy)propionate is an organic compound with the chemical formula C18H27ClO3 and an average molecular weight of 326.86 g/mol. octyl (R)-2-(4-chloro-2-methylphenoxy)propionate belongs to the 2-phenoxypropionic acid esters, a subclass of benzene and substituted derivatives within the organic compounds. It is further classified as a member of the benzenoids superclass.

The compound has been identified in or released from 19 recorded sources across multiple sectors. Within aquatic systems and sediments, it is found in seawater, freshwater, surface water, and groundwater. It is also present 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, the compound is detected in wastewater, unspecified wastewater, mine wastewater, and wastewater treatment effluent. Additional sources include agriculture and land management via irrigation water, and marine, shipping, and aquaculture through bilge water and ballast water. It is also associated with appliances, HVAC, and refrigerants, specifically water heaters and water coolers, as well as two other sectors. Recorded routes of human exposure to the compound include oral, inhalation, and touch.</description>
  <categories/>
  <types>
    <type>PMT</type>
  </types>
  <synonyms/>
  <chemical_formula>C18H27ClO3</chemical_formula>
  <average_molecular_weight>326.86</average_molecular_weight>
  <monisotopic_moleculate_weight>326.1648724</monisotopic_moleculate_weight>
  <iupac_name>octyl (2R)-2-(4-chloro-2-methylphenoxy)propanoate</iupac_name>
  <traditional_iupac>octyl (2R)-2-(4-chloro-2-methylphenoxy)propanoate</traditional_iupac>
  <cas_registry_number>66423-13-0</cas_registry_number>
  <smiles>[H][C@](C)(OC1=CC=C(Cl)C=C1C)C(=O)OCCCCCCCC</smiles>
  <inchi>InChI=1S/C18H27ClO3/c1-4-5-6-7-8-9-12-21-18(20)15(3)22-17-11-10-16(19)13-14(17)2/h10-11,13,15H,4-9,12H2,1-3H3/t15-/m1/s1</inchi>
  <inchikey>QWQMRXFSCXUHMR-OAHLLOKOSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Benzenoids</super_class>
    <class>Benzene and substituted derivatives</class>
    <sub_class>2-phenoxypropionic acid esters</sub_class>
    <direct_parent>2-phenoxypropionic acid esters</direct_parent>
    <alternate_parents>
      <alternative_parent>Alkyl aryl ethers</alternative_parent>
      <alternative_parent>Aryl chlorides</alternative_parent>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Carboxylic acid esters</alternative_parent>
      <alternative_parent>Chlorobenzenes</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Monocarboxylic acids and derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organochlorides</alternative_parent>
      <alternative_parent>Phenol ethers</alternative_parent>
      <alternative_parent>Phenoxy compounds</alternative_parent>
      <alternative_parent>Phenoxyacetic acid derivatives</alternative_parent>
      <alternative_parent>Toluenes</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>2-phenoxypropionic acid ester</substituent>
      <substituent>Alkyl aryl ether</substituent>
      <substituent>Aromatic homomonocyclic compound</substituent>
      <substituent>Aryl chloride</substituent>
      <substituent>Aryl halide</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Carboxylic acid ester</substituent>
      <substituent>Chlorobenzene</substituent>
      <substituent>Ether</substituent>
      <substituent>Halobenzene</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Monocarboxylic acid or derivatives</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organochloride</substituent>
      <substituent>Organohalogen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Phenol ether</substituent>
      <substituent>Phenoxy compound</substituent>
      <substituent>Phenoxyacetate</substituent>
      <substituent>Toluene</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>6.9</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>6.55</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-6.37</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>1.40e-04 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>6.23</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-4.9</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>octyl (2R)-2-(4-chloro-2-methylphenoxy)propanoate</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>326.86</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>326.1648724</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>[H][C@](C)(OC1=CC=C(Cl)C=C1C)C(=O)OCCCCCCCC</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C18H27ClO3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C18H27ClO3/c1-4-5-6-7-8-9-12-21-18(20)15(3)22-17-11-10-16(19)13-14(17)2/h10-11,13,15H,4-9,12H2,1-3H3/t15-/m1/s1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>QWQMRXFSCXUHMR-OAHLLOKOSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>35.53</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>89.99</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>37.11</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>11</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>2</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>
  </predicted_properties>
  <route_of_exposure/>
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  <lethaldose/>
  <carcinogenicity/>
  <use_source/>
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  <health_effects>#&lt;HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f7226ba4ba0&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>6455325</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>4957594</chemspider_id>
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  <general_references/>
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</compound>
