<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-05-25 18:14:35 UTC</creation_date>
  <update_date>2026-04-13 20:28:21 UTC</update_date>
  <accession/>
  <common_name>Oxytocin</common_name>
  <class>SmallMolecule</class>
  <description>Oxytocin (C43H66N12O12S2) is a compound with an average molecular weight of 1,007 g/mol. With an average molecular weight of 1,007 g/mol, Oxytocin is a heavy molecule. Oxytocin belongs to the amino acids, peptides, and analogues, a subclass of carboxylic acids and derivatives within the organic compounds.

The compound is found in or released from 17 recorded sources. These include healthcare, pharmaceuticals, and veterinary products such as gynecologicals and posterior pituitary lobe hormones. It is also associated with food, food processing, and cookware, specifically food preservation, the preparation of vinegar, and fermentation processes for beer. Other recorded sources include building and construction materials like ceilings, as well as household cleaning and consumer products such as tobacco smoke filters, tobacco product cases, perfumes within detergents and soaps, and non electric simulated smoking devices. Additionally, it is linked to electrical and electronic equipment, including electrodes, fixed capacitors and their manufacture, discharge lamps, electrically stimulated smoking devices, and conductors or conductive bodies characterised by the conductive materials.

Recorded exposure routes for oxytocin include intramuscular, intravascular, intravenous, and topical administration. In terms of biological activity, the compound acts on four recorded protein targets. It serves as an agonist of the oxytocin receptor (OXTR) as well as the vasopressin V1a receptor (AVPR1A), vasopressin V1b receptor (AVPR1B), and vasopressin V2 receptor (AVPR2).</description>
  <categories/>
  <types/>
  <synonyms/>
  <chemical_formula>C43H66N12O12S2</chemical_formula>
  <average_molecular_weight>1007.187</average_molecular_weight>
  <monisotopic_moleculate_weight>1006.436457016</monisotopic_moleculate_weight>
  <iupac_name>(2S)-2-({1-[(4R,7S,10S,13S,16S,19R)-19-amino-13-[(2S)-butan-2-yl]-10-(2-carbamoylethyl)-7-(carbamoylmethyl)-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl]pyrrolidin-2-yl}formamido)-N-(carbamoylmethyl)-4-methylpentanamide</iupac_name>
  <traditional_iupac>(2S)-2-({1-[(4R,7S,10S,13S,16S,19R)-19-amino-13-[(2S)-butan-2-yl]-10-(2-carbamoylethyl)-7-(carbamoylmethyl)-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl]pyrrolidin-2-yl}formamido)-N-(carbamoylmethyl)-4-methylpentanamide</traditional_iupac>
  <cas_registry_number>50-56-6</cas_registry_number>
  <smiles>CC[C@H](C)[C@@H]1NC(=O)[C@H](CC2=CC=C(O)C=C2)NC(=O)[C@@H](N)CSSC[C@H](NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCC(N)=O)NC1=O)C(=O)N1CCCC1C(=O)N[C@@H](CC(C)C)C(=O)NCC(N)=O</smiles>
  <inchi>InChI=1S/C43H66N12O12S2/c1-5-22(4)35-42(66)49-26(12-13-32(45)57)38(62)51-29(17-33(46)58)39(63)53-30(20-69-68-19-25(44)36(60)50-28(40(64)54-35)16-23-8-10-24(56)11-9-23)43(67)55-14-6-7-31(55)41(65)52-27(15-21(2)3)37(61)48-18-34(47)59/h8-11,21-22,25-31,35,56H,5-7,12-20,44H2,1-4H3,(H2,45,57)(H2,46,58)(H2,47,59)(H,48,61)(H,49,66)(H,50,60)(H,51,62)(H,52,65)(H,53,63)(H,54,64)/t22-,25-,26-,27-,28-,29-,30-,31?,35-/m0/s1</inchi>
  <inchikey>XNOPRXBHLZRZKH-MQYCRUOZSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organic acids and derivatives</super_class>
    <class>Carboxylic acids and derivatives</class>
    <sub_class>Amino acids, peptides, and analogues</sub_class>
    <direct_parent>Oligopeptides</direct_parent>
    <alternate_parents>
      <alternative_parent>1-hydroxy-2-unsubstituted benzenoids</alternative_parent>
      <alternative_parent>Alpha amino acid amides</alternative_parent>
      <alternative_parent>Azacyclic compounds</alternative_parent>
      <alternative_parent>Benzene and substituted derivatives</alternative_parent>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Cyclic peptides</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Lactams</alternative_parent>
      <alternative_parent>Leucine and derivatives</alternative_parent>
      <alternative_parent>Macrolactams</alternative_parent>
      <alternative_parent>Monoalkylamines</alternative_parent>
      <alternative_parent>N-acyl amines</alternative_parent>
      <alternative_parent>N-acyl-alpha amino acids and derivatives</alternative_parent>
      <alternative_parent>N-acylpyrrolidines</alternative_parent>
      <alternative_parent>Organic disulfides</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Primary carboxylic acid amides</alternative_parent>
      <alternative_parent>Proline and derivatives</alternative_parent>
      <alternative_parent>Pyrrolidinecarboxamides</alternative_parent>
      <alternative_parent>Secondary carboxylic acid amides</alternative_parent>
      <alternative_parent>Tertiary carboxylic acid amides</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>1-hydroxy-2-unsubstituted benzenoid</substituent>
      <substituent>Alpha-amino acid amide</substituent>
      <substituent>Alpha-amino acid or derivatives</substituent>
      <substituent>Alpha-oligopeptide</substituent>
      <substituent>Amine</substituent>
      <substituent>Amino acid or derivatives</substituent>
      <substituent>Aromatic heteromonocyclic compound</substituent>
      <substituent>Azacycle</substituent>
      <substituent>Benzenoid</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxamide group</substituent>
      <substituent>Cyclic alpha peptide</substituent>
      <substituent>Fatty acyl</substituent>
      <substituent>Fatty amide</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Lactam</substituent>
      <substituent>Leucine or derivatives</substituent>
      <substituent>Macrolactam</substituent>
      <substituent>Monocyclic benzene moiety</substituent>
      <substituent>N-acyl-alpha amino acid or derivatives</substituent>
      <substituent>N-acyl-amine</substituent>
      <substituent>N-acylpyrrolidine</substituent>
      <substituent>N-substituted-alpha-amino acid</substituent>
      <substituent>Organic disulfide</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Phenol</substituent>
      <substituent>Primary aliphatic amine</substituent>
      <substituent>Primary amine</substituent>
      <substituent>Primary carboxylic acid amide</substituent>
      <substituent>Proline or derivatives</substituent>
      <substituent>Pyrrolidine</substituent>
      <substituent>Pyrrolidine carboxylic acid or derivatives</substituent>
      <substituent>Pyrrolidine-2-carboxamide</substituent>
      <substituent>Secondary carboxylic acid amide</substituent>
      <substituent>Tertiary carboxylic acid amide</substituent>
    </substituents>
    <molecular_framework>Aromatic heteromonocyclic 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>-0.69</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-4.26</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>5.50e-02 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>-5</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>9.5</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>7.65</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>(2S)-2-({1-[(4R,7S,10S,13S,16S,19R)-19-amino-13-[(2S)-butan-2-yl]-10-(2-carbamoylethyl)-7-(carbamoylmethyl)-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl]pyrrolidin-2-yl}formamido)-N-(carbamoylmethyl)-4-methylpentanamide</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>1007.187</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>1006.436457016</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>CC[C@H](C)[C@@H]1NC(=O)[C@H](CC2=CC=C(O)C=C2)NC(=O)[C@@H](N)CSSC[C@H](NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCC(N)=O)NC1=O)C(=O)N1CCCC1C(=O)N[C@@H](CC(C)C)C(=O)NCC(N)=O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C43H66N12O12S2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C43H66N12O12S2/c1-5-22(4)35-42(66)49-26(12-13-32(45)57)38(62)51-29(17-33(46)58)39(63)53-30(20-69-68-19-25(44)36(60)50-28(40(64)54-35)16-23-8-10-24(56)11-9-23)43(67)55-14-6-7-31(55)41(65)52-27(15-21(2)3)37(61)48-18-34(47)59/h8-11,21-22,25-31,35,56H,5-7,12-20,44H2,1-4H3,(H2,45,57)(H2,46,58)(H2,47,59)(H,48,61)(H,49,66)(H,50,60)(H,51,62)(H,52,65)(H,53,63)(H,54,64)/t22-,25-,26-,27-,28-,29-,30-,31?,35-/m0/s1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>XNOPRXBHLZRZKH-MQYCRUOZSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>399.53</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>252.11</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>102.58</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>17</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>13</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>12</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>physiological_charge</kind>
      <value>1</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:0x00007f7266feaaa8&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id>DB00107</drugbank_id>
  <hmdb_id/>
  <pubchem_compound_id>5771</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>388434</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>
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    <target>
      <target_id>BE0000844</target_id>
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    <target>
      <target_id>BE0000165</target_id>
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      <target_id>BE0000773</target_id>
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      <target_id>BE0000293</target_id>
      <mechanism_of_action/>
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  </targets>
</compound>
