ChemSpider 2D Image | Ketotifen | C19H19NOS

Ketotifen

  • Molecular FormulaC19H19NOS
  • Average mass309.425 Da
  • Monoisotopic mass309.118744 Da
  • ChemSpider ID3695

More details:

Featured data source
The Merck Index Online

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

10H-Benzo(4,5)cyclohepta(1,2-b)thiophen-10-one, 4,9-dihydro-4-(1-methyl-4-piperidinylidene)-
10H-Benzo[4,5]cyclohepta[1,2-b]thiophen-10-one, 4,9-dihydro-4-(1-methyl-4-piperidinylidene)- [ACD/Index Name]
252-099-7 [EINECS]
252-100-0 [EINECS]
34580-13-7 [RN]
4-(1-Methyl-4-piperidinyliden)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-on [German] [ACD/IUPAC Name]
4-(1-Methyl-4-piperidinylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one [ACD/IUPAC Name]
4-(1-Méthyl-4-pipéridinylidène)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophén-10-one [French] [ACD/IUPAC Name]
4-(1-Methylpiperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one
4,9-Dihydro-4-(1-methyl-4-piperidinylidene)-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

3993 [DBID]
X49220T18G [DBID]
AIDS033084 [DBID]
AIDS-033084 [DBID]
BAS 00444483 [DBID]
BPBio1_000575 [DBID]
BRN 3983897 [DBID]
BSPBio_000521 [DBID]
BSPBio_002964 [DBID]
DivK1c_000111 [DBID]
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  • Experimental Physico-chemical Properties
  • Miscellaneous

    • Safety:

      R06AX17 Wikidata Q2458673
      S01GX08 Wikidata Q2458673

    • Chemical Class:

      An organic heterotricyclic compound that is 4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one which is substituted at position 4 by a 1-methylpiperidin-4-ylidene group. A blocker of histamine H1 receptors with a stabilising action on mast cells, it is used (usually as its hydrogen fumarate salt) for the treatment of asthma, where it may take several weeks to exert its full effect. ChEBI CHEBI:92511

    • Therapeutical Effect:

      Antipruritics,Histamine H1 Antagonists Sean Ekins
  • Gas Chromatography

    • Retention Index (Kovats):

      2656 (estimated with error: 89) NIST Spectra mainlib_247227, replib_248234, replib_298707
      2600 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.20 mm; Column length: 12 m; Column type: Capillary; Heat rate: 30 K/min; Start T: 100 C; End T: 310 C; End time: 5 min; Start time: 3 min; CAS no: 34580137; Active phase: Methyl Silicone; Carrier gas: He; Phase thickness: 0.33 um; Data type: Kovats RI; Authors: Maurer, H.; Pfleger, K., Identification and Differentiation of Alkylamine Antihistamines and Their Metabolites in Urine by Computerized Gas Chromatography-Mass Spectrometry, J. Chromatogr., 430, 1988, 31-41.) NIST Spectra nist ri
      2666 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 280 C; CAS no: 34580137; Active phase: SE-30; Carrier gas: N2; Substrate: 1% se-30 on Anachrom ABS(80-100mesh); Data type: Kovats RI; Authors: Musumarra, G.; Scarlata, G.; Romano, G.; Cappello, G.; Clementi, S.; Giulietti, G., Qualitative organic analysis. Part 2. Identification of drugs by principal components analysis of standardized TLC data in four eluent systems and of retention indices on SE 30, J. Anal. Toxicol., 11, 1987, 154-163.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.2±0.1 g/cm3
Boiling Point: 488.9±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.2 mmHg at 25°C
Enthalpy of Vaporization: 75.5±3.0 kJ/mol
Flash Point: 249.5±28.7 °C
Index of Refraction: 1.643
Molar Refractivity: 90.5±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 4.88
ACD/LogD (pH 5.5): 1.16
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 4.81
ACD/LogD (pH 7.4): 2.61
ACD/BCF (pH 7.4): 25.56
ACD/KOC (pH 7.4): 137.24
Polar Surface Area: 49 Å2
Polarizability: 35.9±0.5 10-24cm3
Surface Tension: 52.0±3.0 dyne/cm
Molar Volume: 250.2±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™ 

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.85

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  440.49  (Adapted Stein & Brown method)
    Melting Pt (deg C):  184.80  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.81E-008  (Modified Grain method)
    Subcooled liquid VP: 8.46E-007 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  4.441
       log Kow used: 3.85 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  133.61 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Aliphatic Amines
       Thiophenes

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.20E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.659E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.85  (KowWin est)
  Log Kaw used:  -8.883  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.733
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.4565
   Biowin2 (Non-Linear Model)     :   0.0298
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.1632  (months      )
   Biowin4 (Primary Survey Model) :   3.0226  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.1026
   Biowin6 (MITI Non-Linear Model):   0.0078
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.8847
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.000113 Pa (8.46E-007 mm Hg)
  Log Koa (Koawin est  ): 12.733
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0266 
       Octanol/air (Koa) model:  1.33 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.49 
       Mackay model           :  0.68 
       Octanol/air (Koa) model:  0.991 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 214.3537 E-12 cm3/molecule-sec
      Half-Life =     0.050 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.599 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =  1064.699951 E-17 cm3/molecule-sec
      Half-Life =     0.001 Days (at 7E11 mol/cm3)
      Half-Life =      1.550 Min
   Fraction sorbed to airborne particulates (phi): 0.585 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  5.155E+004
      Log Koc:  4.712 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 1.421 (BCF = 26.39)
       log Kow used: 3.85 (estimated)

 Volatilization from Water:
    Henry LC:  3.2E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.218E+007  hours   (1.341E+006 days)
    Half-Life from Model Lake : 3.511E+008  hours   (1.463E+007 days)

 Removal In Wastewater Treatment:
    Total removal:              23.72  percent
    Total biodegradation:        0.27  percent
    Total sludge adsorption:    23.45  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.000237        0.0253       1000       
   Water     10.3            1.44e+003    1000       
   Soil      87.5            2.88e+003    1000       
   Sediment  2.14            1.3e+004     0          
     Persistence Time: 2.33e+003 hr

Click to predict properties on the Chemicalize site


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