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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-06-12 17:32:34 UTC
Update Date2019-07-23 07:14:33 UTC
HMDB IDHMDB0060536
Secondary Accession Numbers
  • HMDB60536
Metabolite Identification
Common NameNorclozapine
DescriptionNorclozapine is the major metabolite of Clozapine. Clozapine is an atypical antipsychotic medication used in the treatment of schizophrenia, and is also sometimes used off-label for the treatment of bipolar disorder. Clozapine is extensively metabolized in the liver, via the cytochrome P450 system, to polar metabolites suitable for elimination in the urine and feces. The major metabolite, norclozapine (desmethyl-clozapine), is pharmacologically active. (Wikipedia )
Structure
Data?1563866073
Synonyms
ValueSource
8-Chloro-11-(1-piperazinyl)-5H-dibenzo(b,e)(1,4)diazepineChEBI
DemethylclozapineChEBI
DesmethylclozapineChEBI
N-Desmethyl clozapineChEBI
NDMCChEBI
8-Chloro-11-piperazin-1-yl-5H-dibenzo(b,e)(1,4)diazepineMeSH
NorclozapineChEBI
Chemical FormulaC17H17ClN4
Average Molecular Weight312.797
Monoisotopic Molecular Weight312.114174271
IUPAC Name6-chloro-10-(piperazin-1-yl)-2,9-diazatricyclo[9.4.0.0³,⁸]pentadeca-1(15),3,5,7,9,11,13-heptaene
Traditional NameNDMC
CAS Registry NumberNot Available
SMILES
ClC1=CC=C2NC3=CC=CC=C3C(=NC2=C1)N1CCNCC1
InChI Identifier
InChI=1S/C17H17ClN4/c18-12-5-6-15-16(11-12)21-17(22-9-7-19-8-10-22)13-3-1-2-4-14(13)20-15/h1-6,11,19-20H,7-10H2
InChI KeyJNNOSTQEZICQQP-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
  • Aryl chloride
  • Aryl halide
  • 1,4-diazinane
  • Imidolactam
  • Piperazine
  • Benzenoid
  • Amidine
  • Carboxylic acid amidine
  • Secondary aliphatic amine
  • Azacycle
  • Organic 1,3-dipolar compound
  • Secondary amine
  • Propargyl-type 1,3-dipolar organic compound
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organohalogen compound
  • Organochloride
  • Organonitrogen compound
  • Organopnictogen compound
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Not AvailableNot 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 Solubility0.2 g/LALOGPS
logP3.25ALOGPS
logP3.02ChemAxon
logS-3.2ALOGPS
pKa (Strongest Acidic)15.9ChemAxon
pKa (Strongest Basic)8.83ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area39.66 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity92.06 m³·mol⁻¹ChemAxon
Polarizability33.58 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+167.77530932474
DeepCCS[M-H]-165.41730932474
DeepCCS[M-2H]-198.8730932474
DeepCCS[M+Na]+174.09730932474
AllCCS[M+H]+171.432859911
AllCCS[M+H-H2O]+168.132859911
AllCCS[M+NH4]+174.532859911
AllCCS[M+Na]+175.432859911
AllCCS[M-H]-173.532859911
AllCCS[M+Na-2H]-172.832859911
AllCCS[M+HCOO]-172.032859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
NorclozapineClC1=CC=C2NC3=CC=CC=C3C(=NC2=C1)N1CCNCC14241.3Standard polar33892256
NorclozapineClC1=CC=C2NC3=CC=CC=C3C(=NC2=C1)N1CCNCC12955.4Standard non polar33892256
NorclozapineClC1=CC=C2NC3=CC=CC=C3C(=NC2=C1)N1CCNCC12975.3Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Norclozapine,1TMS,isomer #1C[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CCNCC2)C2=CC=CC=C212810.0Semi standard non polar33892256
Norclozapine,1TMS,isomer #1C[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CCNCC2)C2=CC=CC=C212698.0Standard non polar33892256
Norclozapine,1TMS,isomer #1C[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CCNCC2)C2=CC=CC=C214157.1Standard polar33892256
Norclozapine,1TMS,isomer #2C[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3NC3=CC=CC=C23)CC12999.6Semi standard non polar33892256
Norclozapine,1TMS,isomer #2C[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3NC3=CC=CC=C23)CC13020.0Standard non polar33892256
Norclozapine,1TMS,isomer #2C[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3NC3=CC=CC=C23)CC14594.7Standard polar33892256
Norclozapine,2TMS,isomer #1C[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C)C3=CC=CC=C23)CC12943.3Semi standard non polar33892256
Norclozapine,2TMS,isomer #1C[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C)C3=CC=CC=C23)CC12986.8Standard non polar33892256
Norclozapine,2TMS,isomer #1C[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C)C3=CC=CC=C23)CC13965.4Standard polar33892256
Norclozapine,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CCNCC2)C2=CC=CC=C212956.9Semi standard non polar33892256
Norclozapine,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CCNCC2)C2=CC=CC=C212906.9Standard non polar33892256
Norclozapine,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=C(Cl)C=C2N=C(N2CCNCC2)C2=CC=CC=C214212.6Standard polar33892256
Norclozapine,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3NC3=CC=CC=C23)CC13224.2Semi standard non polar33892256
Norclozapine,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3NC3=CC=CC=C23)CC13209.3Standard non polar33892256
Norclozapine,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3NC3=CC=CC=C23)CC14813.4Standard polar33892256
Norclozapine,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C(C)(C)C)C3=CC=CC=C23)CC13283.6Semi standard non polar33892256
Norclozapine,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C(C)(C)C)C3=CC=CC=C23)CC13380.0Standard non polar33892256
Norclozapine,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCN(C2=NC3=CC(Cl)=CC=C3N([Si](C)(C)C(C)(C)C)C3=CC=CC=C23)CC14086.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Norclozapine GC-MS (Non-derivatized) - 70eV, Positivesplash10-0016-9080000000-e5a1e856cf588ec3b2c62017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Norclozapine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Norclozapine 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 - Norclozapine 10V, Positive-QTOFsplash10-03di-0009000000-7cf412ccc6a185a328932017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 20V, Positive-QTOFsplash10-03di-0039000000-447fe506f0de08f3a2362017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 40V, Positive-QTOFsplash10-0006-2290000000-c1c2dd97da1db1b554a62017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 10V, Negative-QTOFsplash10-03di-0009000000-c0fb9c4f98b955f22ee42017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 20V, Negative-QTOFsplash10-03di-0019000000-2a2da1946b96480241e42017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 40V, Negative-QTOFsplash10-0006-9060000000-b9a39c856d2c8566d39b2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 10V, Positive-QTOFsplash10-03di-0009000000-19ee5c40a0267a7c3d312021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 20V, Positive-QTOFsplash10-03di-0019000000-cb30f19e8d9094be09aa2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 40V, Positive-QTOFsplash10-01r6-1091000000-16307b800b31dddedd252021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 10V, Negative-QTOFsplash10-03di-0009000000-36527b79e8e0db55602b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 20V, Negative-QTOFsplash10-03di-1009000000-5ddb83e6baa29fcab0a52021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Norclozapine 40V, Negative-QTOFsplash10-05ai-4192000000-fda9bbc6faa449b756b52021-10-12Wishart 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 IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkDesmethylclozapine
METLIN IDNot Available
PubChem Compound135409468
PDB IDNot Available
ChEBI ID64050
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 References
  1. Ekstrom J, Godoy T, Riva A: N-Desmethylclozapine exerts dual and opposite effects on salivary secretion in the rat. Eur J Oral Sci. 2010 Feb;118(1):1-8. doi: 10.1111/j.1600-0722.2009.00696.x. [PubMed:20156258 ]
  2. Couchman L, Morgan PE, Spencer EP, Flanagan RJ: Plasma clozapine, norclozapine, and the clozapine:norclozapine ratio in relation to prescribed dose and other factors: data from a therapeutic drug monitoring service, 1993-2007. Ther Drug Monit. 2010 Aug;32(4):438-47. doi: 10.1097/FTD.0b013e3181dad1fb. [PubMed:20463634 ]
  3. Ertugrul A, Ozdemir H, Vural A, Dalkara T, Meltzer HY, Saka E: The influence of N-desmethylclozapine and clozapine on recognition memory and BDNF expression in hippocampus. Brain Res Bull. 2011 Feb 1;84(2):144-50. doi: 10.1016/j.brainresbull.2010.11.014. Epub 2010 Dec 4. [PubMed:21134422 ]
  4. Godoy T, Riva A, Ekstrom J: Clozapine-induced salivation: interaction with N-desmethylclozapine and amisulpride in an experimental rat model. Eur J Oral Sci. 2011 Aug;119(4):275-81. doi: 10.1111/j.1600-0722.2011.00832.x. [PubMed:21726287 ]
  5. Heusler P, Bruins Slot L, Tourette A, Tardif S, Cussac D: The clozapine metabolite N-desmethylclozapine displays variable activity in diverse functional assays at human dopamine D(2) and serotonin 5-HT(1)A receptors. Eur J Pharmacol. 2011 Nov 1;669(1-3):51-8. doi: 10.1016/j.ejphar.2011.07.031. Epub 2011 Aug 5. [PubMed:21835172 ]
  6. Humbert-Claude M, Davenas E, Gbahou F, Vincent L, Arrang JM: Involvement of histamine receptors in the atypical antipsychotic profile of clozapine: a reassessment in vitro and in vivo. Psychopharmacology (Berl). 2012 Mar;220(1):225-41. doi: 10.1007/s00213-011-2471-5. Epub 2011 Sep 13. [PubMed:21912901 ]