<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2026-03-31 20:43:48 UTC</creation_date>
  <update_date>2026-05-20 19:27:10 UTC</update_date>
  <accession/>
  <common_name>Isopropicillin</common_name>
  <class>SmallMolecule</class>
  <description>Isopropicillin is an organic compound with the formula C18H22N2O5S1 and an average molecular weight of 378.44 g/mol. Isopropicillin belongs to the beta lactams, a subclass of lactams within the organic compounds. It is categorized as an organoheterocyclic compound. This substance is found in or released from healthcare, pharmaceuticals &amp; veterinary products, specifically antibiotics. Recorded exposure routes for the compound include inhalation and oral administration.</description>
  <categories/>
  <types/>
  <synonyms>
    <synonym>(1-Methyl-1-phenoxy-ethyl)penicillin.</synonym>
    <synonym>(1-Methyl-1-phenoxyethyl)penicillin</synonym>
    <synonym>(2S,5R,6R)-3,3-Dimethyl-6-((2-methyl-2-phenoxypropanoyl)amino)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid</synonym>
    <synonym>(2S,5R,6R)-3,3-Dimethyl-6-[(2-methyl-2-phenoxypropanoyl)amino]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid</synonym>
    <synonym>(2S,5R,6R)-3,3-dimethyl-6-[[2-methyl-1-oxo-2-(phenoxy)propyl]amino]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid</synonym>
    <synonym>(2S,5R,6R)-3,3-dimethyl-6-[[2-methyl-2-(phenoxy)propanoyl]amino]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid</synonym>
    <synonym>(2S,5R,6R)-7-keto-3,3-dimethyl-6-[[2-methyl-2-(phenoxy)propanoyl]amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid</synonym>
    <synonym>4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-6-[(2-methyl-1-oxo-2-phenoxypropyl)amino]-7-oxo-, (2S,5R,6R)-</synonym>
    <synonym>4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 3,3-dimethyl-6-[(2-methyl-1-oxo-2-phenoxypropyl)amino]-7-oxo-,(2S,5R,6R)-</synonym>
    <synonym>670928</synonym>
    <synonym>Isopropicillin</synonym>
    <synonym>Isopropicillin [INN]</synonym>
    <synonym>UNII-05T9139TJW</synonym>
    <synonym>UNII:05T9139TJW</synonym>
  </synonyms>
  <chemical_formula>C18H22N2O5S1</chemical_formula>
  <average_molecular_weight>378.44</average_molecular_weight>
  <monisotopic_moleculate_weight>378.124943</monisotopic_moleculate_weight>
  <iupac_name/>
  <traditional_iupac/>
  <cas_registry_number>4780-24-9</cas_registry_number>
  <smiles>CC(C)(OC1=CC=CC=C1)C(=O)N[C@H]1[C@H]2SC(C)(C)[C@@H](N2C1=O)C(O)=O</smiles>
  <inchi>InChI=1S/C18H22N2O5S/c1-17(2,25-10-8-6-5-7-9-10)16(24)19-11-13(21)20-12(15(22)23)18(3,4)26-14(11)20/h5-9,11-12,14H,1-4H3,(H,19,24)(H,22,23)/t11-,12+,14-/m1/s1</inchi>
  <inchikey>CHEBXWARWMFQKF-MBNYWOFBSA-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/>
  <predicted_properties>
    <property>
      <kind>average_mass</kind>
      <value>378.44</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>378.124943</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>CC(C)(OC1=CC=CC=C1)C(=O)N[C@H]1[C@H]2SC(C)(C)[C@@H](N2C1=O)C(O)=O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C18H22N2O5S1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C18H22N2O5S/c1-17(2,25-10-8-6-5-7-9-10)16(24)19-11-13(21)20-12(15(22)23)18(3,4)26-14(11)20/h5-9,11-12,14H,1-4H3,(H,19,24)(H,22,23)/t11-,12+,14-/m1/s1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>CHEBXWARWMFQKF-MBNYWOFBSA-N</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:0x00007f7267a756f8&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>3038477</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>2302042</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/>
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  </targets>
</compound>
