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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-07-09 16:06:05 UTC
Update Date2019-07-23 07:15:20 UTC
HMDB IDHMDB0060900
Secondary Accession Numbers
  • HMDB60900
Metabolite Identification
Common NameClozapine N-oxide
DescriptionClozapine N-oxide is a metabolite of clozapine. Clozapine (sold as Clozaril, Gen-Clozapine in Canada, Azaleptin, Leponex, Fazaclo, Froidir; Denzapine, Zaponex in the UK; Klozapol in Poland, Clopine in Australia and New Zealand) is an atypical antipsychotic medication used in the treatment of schizophrenia, and is also used off-label in the treatment of bipolar disorder. Wyatt. R and Chew. (Wikipedia )
Structure
Data?1563866120
Synonyms
ValueSource
Clozapine-N-oxideHMDB
8-Chloro-11-(4-methyl-1-piperazinyl)-5H-dibenzo(b,e)(1,4)diazepine N-oxideMeSH
Chemical FormulaC18H19ClN4O
Average Molecular Weight342.823
Monoisotopic Molecular Weight342.124738957
IUPAC Name4-{6-chloro-2,9-diazatricyclo[9.4.0.0³,⁸]pentadeca-1(15),3(8),4,6,9,11,13-heptaen-10-yl}-1-methylpiperazin-1-ium-1-olate
Traditional Name4-{6-chloro-2,9-diazatricyclo[9.4.0.0³,⁸]pentadeca-1(15),3(8),4,6,9,11,13-heptaen-10-yl}-1-methylpiperazin-1-ium-1-olate
CAS Registry NumberNot Available
SMILES
C[N+]1([O-])CCN(CC1)C1=NC2=C(NC3=CC=CC=C13)C=CC(Cl)=C2
InChI Identifier
InChI=1S/C18H19ClN4O/c1-23(24)10-8-22(9-11-23)18-14-4-2-3-5-15(14)20-16-7-6-13(19)12-17(16)21-18/h2-7,12,20H,8-11H2,1H3
InChI KeyOGUCZBIQSYYWEF-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as dibenzodiazepines. Dibenzodiazepines are compounds containing a dibenzodiazepine moiety, which consists of two benzene connected by diazepine ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzodiazepines
Sub ClassDibenzodiazepines
Direct ParentDibenzodiazepines
Alternative Parents
Substituents
  • Dibenzodiazepine
  • 1,4-benzodiazepine
  • N-methylpiperazine
  • N-alkylpiperazine
  • Aryl chloride
  • Aryl halide
  • 1,4-diazinane
  • Imidolactam
  • Piperazine
  • Benzenoid
  • Trialkyl amine oxide
  • Azacycle
  • Carboxylic acid amidine
  • Organic 1,3-dipolar compound
  • Secondary amine
  • Trisubstituted n-oxide
  • Amidine
  • N-oxide
  • Propargyl-type 1,3-dipolar organic compound
  • Organochloride
  • Organohalogen compound
  • Organic nitrogen compound
  • Organonitrogen compound
  • Amine
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxide
  • Organic zwitterion
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.058 g/LALOGPS
logP1.5ALOGPS
logP2.28ChemAxon
logS-3.8ALOGPS
pKa (Strongest Acidic)15.9ChemAxon
pKa (Strongest Basic)3.74ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area54.51 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity99.4 m³·mol⁻¹ChemAxon
Polarizability36.27 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-206.46930932474
DeepCCS[M+Na]+181.69630932474
AllCCS[M+H]+178.532859911
AllCCS[M+H-H2O]+175.432859911
AllCCS[M+NH4]+181.332859911
AllCCS[M+Na]+182.132859911
AllCCS[M-H]-184.132859911
AllCCS[M+Na-2H]-184.132859911
AllCCS[M+HCOO]-184.232859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022.2.66 minutes32390414
Predicted by Siyang on May 30, 202210.3706 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.78 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid665.7 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid206.5 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid129.2 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid172.3 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid56.4 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid316.7 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid362.2 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)678.0 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid747.1 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid86.1 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid802.6 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid182.3 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid260.2 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate419.6 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA389.3 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water31.3 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Clozapine N-oxideC[N+]1([O-])CCN(CC1)C1=NC2=C(NC3=CC=CC=C13)C=CC(Cl)=C24475.7Standard polar33892256
Clozapine N-oxideC[N+]1([O-])CCN(CC1)C1=NC2=C(NC3=CC=CC=C13)C=CC(Cl)=C22155.6Standard non polar33892256
Clozapine N-oxideC[N+]1([O-])CCN(CC1)C1=NC2=C(NC3=CC=CC=C13)C=CC(Cl)=C23050.5Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Clozapine N-oxide,1TMS,isomer #1C[N+]1([O-])CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C)C3=CC=CC=C23)CC12909.3Semi standard non polar33892256
Clozapine N-oxide,1TMS,isomer #1C[N+]1([O-])CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C)C3=CC=CC=C23)CC12881.9Standard non polar33892256
Clozapine N-oxide,1TMS,isomer #1C[N+]1([O-])CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C)C3=CC=CC=C23)CC14087.1Standard polar33892256
Clozapine N-oxide,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CC[N+](C)([O-])CC2)C2=CC=CC=C213071.1Semi standard non polar33892256
Clozapine N-oxide,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CC[N+](C)([O-])CC2)C2=CC=CC=C213113.9Standard non polar33892256
Clozapine N-oxide,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CC[N+](C)([O-])CC2)C2=CC=CC=C214145.3Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Clozapine N-oxide GC-MS (Non-derivatized) - 70eV, Positivesplash10-00or-6259000000-662cd23aab72b789b1712017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Clozapine N-oxide GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Clozapine N-oxide 10V, Positive-QTOFsplash10-0006-0009000000-720c1bf442a1969fee502017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Clozapine N-oxide 20V, Positive-QTOFsplash10-006x-0069000000-8ecd0b8a4838120f9e1e2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Clozapine N-oxide 40V, Positive-QTOFsplash10-00rf-3190000000-9265041433db0f713b562017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Clozapine N-oxide 10V, Negative-QTOFsplash10-0006-0009000000-57d5c44d79a2def1bb1d2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Clozapine N-oxide 20V, Negative-QTOFsplash10-0006-0009000000-a1724631e17f5f48858a2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Clozapine N-oxide 40V, Negative-QTOFsplash10-00kf-0190000000-857722fe42b044f351222017-10-06Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Membrane (predicted from logP)
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Kidney
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID21169512
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkClozapine N-oxide
METLIN IDNot Available
PubChem Compound135445691
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available