| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-06 15:16:51 UTC |
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| Update Date | 2022-03-07 02:51:51 UTC |
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| HMDB ID | HMDB0015056 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Ketotifen |
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| Description | Ketotifen is only found in individuals that have used or taken this drug. It is a cycloheptathiophene blocker of histamine H1 receptors and release of inflammatory mediators. It has been proposed for the treatment of asthma, rhinitis, skin allergies, and anaphylaxis. [PubChem]Ketotifen is a relatively selective, non-competitive histamine antagonist (H1-receptor) and mast cell stabilizer. Ketotifen inhibits the release of mediators from mast cells involved in hypersensitivity reactions. Decreased chemotaxis and activation of eosinophils have also been demonstrated. Ketotifen also inhibits cAMP phosphodiesterase. Properties of ketotifen which may contribute to its antiallergic activity and its ability to affect the underlying pathology of asthma include inhibition of the development of airway hyper-reactivity associated with activation of platelets by PAF (Platelet Activating Factor), inhibition of PAF-induced accumulation of eosinophils and platelets in the airways, suppression of the priming of eosinophils by human recombinant cytokines and antagonism of bronchoconstriction due to leukotrienes. Ketotifen inhibits of the release of allergic mediators such as histamine, leukotrienes C4 and D4(SRS-A) and PAF. |
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| Structure | CN1CCC(CC1)=C1C2=C(SC=C2)C(=O)CC2=CC=CC=C12 InChI=1S/C19H19NOS/c1-20-9-6-13(7-10-20)18-15-5-3-2-4-14(15)12-17(21)19-16(18)8-11-22-19/h2-5,8,11H,6-7,9-10,12H2,1H3 |
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| Synonyms | | Value | Source |
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| 10-(1-Methyl-4-piperidinylidene)-5H-benzo[1,2]cyclohepta[3,4-b]thiophen-4-one | ChEBI | | Ketotifene | ChEBI | | Ketotifeno | ChEBI | | Ketotifenum | ChEBI | | Alaway | Kegg | | Ketotifen fumarate | HMDB | | Ketotifene fumarate | HMDB | | Fumarate, ketotifen | HMDB | | Ketotiphen | HMDB | | Ketotiphene | HMDB | | Zaditen | HMDB | | 4,9-Dihydro-4-(1-methyl-4-piperidylidene)-10H-benzo(4,5)-cyclohepta(1,2-b)thiophen-10-one | HMDB |
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| Chemical Formula | C19H19NOS |
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| Average Molecular Weight | 309.425 |
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| Monoisotopic Molecular Weight | 309.118734925 |
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| IUPAC Name | 2-(1-methylpiperidin-4-ylidene)-6-thiatricyclo[8.4.0.0³,⁷]tetradeca-1(14),3(7),4,10,12-pentaen-8-one |
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| Traditional Name | ketotifen |
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| CAS Registry Number | 34580-14-8 |
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| SMILES | CN1CCC(CC1)=C1C2=C(SC=C2)C(=O)CC2=CC=CC=C12 |
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| InChI Identifier | InChI=1S/C19H19NOS/c1-20-9-6-13(7-10-20)18-15-5-3-2-4-14(15)12-17(21)19-16(18)8-11-22-19/h2-5,8,11H,6-7,9-10,12H2,1H3 |
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| InChI Key | ZCVMWBYGMWKGHF-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds 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. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Cycloheptathiophenes |
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| Sub Class | Not Available |
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| Direct Parent | Cycloheptathiophenes |
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| Alternative Parents | |
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| Substituents | - Cycloheptathiophene
- Aryl alkyl ketone
- Aryl ketone
- Piperidine
- Benzenoid
- Thiophene
- Heteroaromatic compound
- Ketone
- Tertiary amine
- Tertiary aliphatic amine
- Azacycle
- Amine
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organooxygen compound
- Organonitrogen compound
- Organic oxygen compound
- Organic nitrogen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | |
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| Role | Not Available |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | 191 °C (fumarate salt) | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 0.0079 g/L | Not Available | | LogP | 2.2 | Not Available |
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| Experimental Chromatographic Properties | Experimental Collision Cross Sections |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| 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. | 6.43 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 10.6347 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.75 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1114.8 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 243.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 160.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 186.0 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 94.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 306.7 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 359.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 687.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 833.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 272.5 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 933.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 225.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 289.5 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 500.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 483.1 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 59.2 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Ketotifen GC-MS (Non-derivatized) - 70eV, Positive | splash10-0f7k-1390000000-6db4be150fa1cfb3f6ab | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Ketotifen GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Ketotifen GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Experimental LC-MS/MS | LC-MS/MS Spectrum - Ketotifen 35V, Positive-QTOF | splash10-03dj-7029000000-c3d9a1eaad92426878c8 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 10V, Positive-QTOF | splash10-03di-1049000000-d6f913b65f74f32c4e40 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 20V, Positive-QTOF | splash10-03di-3596000000-3bf4c9440bb74daa21de | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 40V, Positive-QTOF | splash10-03xu-5590000000-eaa341611f9d8f05b26a | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 10V, Negative-QTOF | splash10-0a4i-0019000000-5e8d8103685306cf139c | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 20V, Negative-QTOF | splash10-0a4i-1059000000-1e72a4b45cb2dfd7ec30 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 40V, Negative-QTOF | splash10-052f-9030000000-337f8e348bb65d9aa81f | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 10V, Positive-QTOF | splash10-03di-0009000000-c3dc11361445a69aa787 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 20V, Positive-QTOF | splash10-03di-0009000000-c3dc11361445a69aa787 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 40V, Positive-QTOF | splash10-11ou-3091000000-a9fe010a226e84ea6445 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 10V, Negative-QTOF | splash10-0a4i-0009000000-8fa28bced3a8b154afb3 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 20V, Negative-QTOF | splash10-0a4i-0029000000-3597e359772457e300ab | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ketotifen 40V, Negative-QTOF | splash10-0a4i-0096000000-04b0eb63f2d1f82a3466 | 2021-10-11 | Wishart Lab | View Spectrum |
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