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Record Information
Version3.6
Creation Date2013-06-15 18:25:31 UTC
Update Date2017-08-18 12:45:55 UTC
HMDB IDHMDB0060646
Secondary Accession Numbers
  • HMDB60646
Metabolite Identification
Common NameNor-ketotifen
DescriptionNor-ketotifen is a metabolite of ketotifen. Ketotifen is a second-generation H1-antihistamine and mast cell stabilizer. It is most commonly sold in as a salt of fumaric acid, ketotifen fumarate, and is available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis, or the itchy red eyes caused by allergies. In its oral form, it is used to prevent asthma attacks. Side effects include drowsiness, weight gain, dry mouth, irritability, and increased nosebleeds. (Wikipedia)
Structure
Thumb
SynonymsNot Available
Chemical FormulaC18H17NOS
Average Molecular Weight295.399
Monoisotopic Molecular Weight295.103084861
IUPAC Name2-(piperidin-4-ylidene)-6-thiatricyclo[8.4.0.0³,⁷]tetradeca-1(14),3(7),4,10,12-pentaen-8-one
Traditional Name2-(piperidin-4-ylidene)-6-thiatricyclo[8.4.0.0³,⁷]tetradeca-1(14),3(7),4,10,12-pentaen-8-one
CAS Registry NumberNot Available
SMILES
O=C1CC2=CC=CC=C2C(C2=C1SC=C2)=C1CCNCC1
InChI Identifier
InChI=1S/C18H17NOS/c20-16-11-13-3-1-2-4-14(13)17(12-5-8-19-9-6-12)15-7-10-21-18(15)16/h1-4,7,10,19H,5-6,8-9,11H2
InChI KeyIYSYPCSSDZBWHN-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as cycloheptathiophenes. These are polycyclic compounds containing a thiophene ring fused to a 7 member carbocyclic moiety. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom.
KingdomChemical entities
Super ClassOrganic compounds
ClassOrganoheterocyclic compounds
Sub ClassCycloheptathiophenes
Direct ParentCycloheptathiophenes
Alternative Parents
Substituents
  • Cycloheptathiophene
  • Aryl alkyl ketone
  • Aryl ketone
  • Piperidine
  • Benzenoid
  • Heteroaromatic compound
  • Thiophene
  • Ketone
  • Secondary aliphatic amine
  • Secondary amine
  • Azacycle
  • Amine
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
StatusExpected but not Quantified
Origin
  • Drug metabolite
Biofunction
  • Waste products
ApplicationNot Available
Cellular locations
  • Cytoplasm
  • Membrane (predicted from logP)
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.0062 mg/mLALOGPS
logP2.99ALOGPS
logP2.96ChemAxon
logS-4.7ALOGPS
pKa (Strongest Acidic)12.3ChemAxon
pKa (Strongest Basic)9.63ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area29.1 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity96.44 m3·mol-1ChemAxon
Polarizability32.28 Å3ChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
Biological Properties
Cellular Locations
  • Cytoplasm
  • Membrane (predicted from logP)
Biofluid Locations
  • Blood
  • Urine
Tissue Location
  • Kidney
  • Liver
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not Quantified Not AvailableNot AvailableNormal
    details
    UrineExpected but not Quantified Not AvailableNot AvailableNormal
      details
      Abnormal Concentrations
      Not Available
      Associated Disorders and Diseases
      Disease ReferencesNone
      Associated OMIM IDsNone
      DrugBank IDNot Available
      DrugBank Metabolite IDDBMET00961
      Phenol Explorer Compound IDNot Available
      Phenol Explorer Metabolite IDNot Available
      FoodDB IDNot Available
      KNApSAcK IDNot Available
      Chemspider IDNot Available
      KEGG Compound IDNot Available
      BioCyc IDNot Available
      BiGG IDNot Available
      Wikipedia LinkNot Available
      NuGOwiki LinkHMDB0060646
      METLIN IDNot Available
      PubChem Compound9904236
      PDB IDNot Available
      ChEBI IDNot Available
      References
      Synthesis ReferenceNot Available
      Material Safety Data Sheet (MSDS)Not Available
      General ReferencesNot Available