ChemSpider 2D Image | Levocetirizine | C21H25ClN2O3

Levocetirizine

  • Molecular FormulaC21H25ClN2O3
  • Average mass388.888 Da
  • Monoisotopic mass388.155365 Da
  • ChemSpider ID1266001
  • defined stereocentres - 1 of 1 defined stereocentres


More details:






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

(-)-Cetirizine
(2-(4-((R)-(4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetic Acid
(2-{4-[(R)-(4-Chlorophenyl)(phenyl)methyl]-1-piperazinyl}ethoxy)acetic acid [ACD/IUPAC Name]
(2-{4-[(R)-(4-Chlorophenyl)(phenyl)methyl]piperazin-1-yl}ethoxy)acetic acid
(2-{4-[(R)-(4-Chlorphenyl)(phenyl)methyl]-1-piperazinyl}ethoxy)essigsäure [German] [ACD/IUPAC Name]
(R)-Cetirizine
130018-77-8 [RN]
6U5EA9RT2O
7700
Acetic acid, (2-(4-((R)-(4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)-
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Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.2±0.1 g/cm3
Boiling Point: 542.1±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.5 mmHg at 25°C
Enthalpy of Vaporization: 86.3±3.0 kJ/mol
Flash Point: 281.6±28.7 °C
Index of Refraction: 1.589
Molar Refractivity: 105.9±0.3 cm3
#H bond acceptors: 5
#H bond donors: 1
#Freely Rotating Bonds: 8
#Rule of 5 Violations: 0
ACD/LogP: 2.16
ACD/LogD (pH 5.5): 0.05
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.92
ACD/LogD (pH 7.4): -0.55
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 53 Å2
Polarizability: 42.0±0.5 10-24cm3
Surface Tension: 50.8±3.0 dyne/cm
Molar Volume: 314.2±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) =  -0.61

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  581.98  (Adapted Stein & Brown method)
    Melting Pt (deg C):  318.92  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.98E-011  (Modified Grain method)
    MP  (exp database):  112.5 deg C
    Subcooled liquid VP: 2.17E-010 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):  101.3
       log Kow used: -0.61 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4263 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.19E-017  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.505E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.61  (KowWin est)
  Log Kaw used:  -14.766  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.156
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :  -0.1771
   Biowin2 (Non-Linear Model)     :   0.0000
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.0015  (months      )
   Biowin4 (Primary Survey Model) :   2.9260  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.1343
   Biowin6 (MITI Non-Linear Model):   0.0025
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -2.7961
 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):  2.89E-008 Pa (2.17E-010 mm Hg)
  Log Koa (Koawin est  ): 14.156
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  104 
       Octanol/air (Koa) model:  35.2 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 241.2572 E-12 cm3/molecule-sec
      Half-Life =     0.044 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.532 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  6993
      Log Koc:  3.845 

 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 = 0.500 (BCF = 3.162)
       log Kow used: -0.61 (estimated)

 Volatilization from Water:
    Henry LC:  4.19E-017 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.756E+013  hours   (1.148E+012 days)
    Half-Life from Model Lake : 3.006E+014  hours   (1.253E+013 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       1.87e-008       1.06         1000       
   Water     49.3            1.44e+003    1000       
   Soil      50.6            2.88e+003    1000       
   Sediment  0.0961          1.3e+004     0          
     Persistence Time: 1.17e+003 hr




                    

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