ChemSpider 2D Image | (R)-(-)-Praziquantel | C19H24N2O2

(R)-(-)-Praziquantel

  • Molecular FormulaC19H24N2O2
  • Average mass312.406 Da
  • Monoisotopic mass312.183777 Da
  • ChemSpider ID393394

  • defined stereocentres - 1 of 1 defined stereocentres

More details:

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

(R)-(-)-Praziquantel
(11bR)-2-(Cyclohexylcarbonyl)-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isochinolin-4-on [German] [ACD/IUPAC Name]
(11bR)-2-(Cyclohexylcarbonyl)-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinoléin-4-one [French] [ACD/IUPAC Name]
(11bR)-2-(Cyclohexylcarbonyl)-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinolin-4-one [ACD/IUPAC Name]
(R)-2-(Cyclohexanecarbonyl)-2,3,6,7-tetrahydro-1H-pyrazino[2,1-a]isoquinolin-4(11bH)-one
(R)-Praziquantel
4H-Pyrazino[2,1-a]isoquinolin-4-one, 2-(cyclohexylcarbonyl)-1,2,3,6,7,11b-hexahydro-, (11bR)- [ACD/Index Name]
55268-74-1 [RN]
57452-98-9 [RN]
WF15T5925V
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

Lopac-P-4668 [DBID]
NCGC00015818-01 [DBID]
NCGC00016877-01 [DBID]
ZINC00000655 [DBID]

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

    Density: 1.2±0.1 g/cm3
    Boiling Point: 544.1±50.0 °C at 760 mmHg
    Vapour Pressure: 0.0±1.5 mmHg at 25°C
    Enthalpy of Vaporization: 82.3±3.0 kJ/mol
    Flash Point: 254.6±22.5 °C
    Index of Refraction: 1.615
    Molar Refractivity: 88.8±0.4 cm3
    #H bond acceptors: 4
    #H bond donors: 0
    #Freely Rotating Bonds: 1
    #Rule of 5 Violations: 0
    ACD/LogP: 2.44
    ACD/LogD (pH 5.5): 2.71
    ACD/BCF (pH 5.5): 68.12
    ACD/KOC (pH 5.5): 714.25
    ACD/LogD (pH 7.4): 2.71
    ACD/BCF (pH 7.4): 68.12
    ACD/KOC (pH 7.4): 714.25
    Polar Surface Area: 41 Å2
    Polarizability: 35.2±0.5 10-24cm3
    Surface Tension: 55.3±5.0 dyne/cm
    Molar Volume: 254.2±5.0 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) =  2.42

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  478.14  (Adapted Stein & Brown method)
    Melting Pt (deg C):  202.39  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.46E-009  (Modified Grain method)
    MP  (exp database):  136 deg C
    Subcooled liquid VP: 9.75E-008 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):  88.38
       log Kow used: 2.42 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  400 mg/L ( deg C)
        Exper. Ref:  MERCK INDEX (1996)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  536.32 mg/L
    Wat Sol (Exper. database match) =  400.00
       Exper. Ref:  MERCK INDEX (1996)

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.93E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.470E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.42  (KowWin est)
  Log Kaw used:  -8.794  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.214
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0738
   Biowin2 (Non-Linear Model)     :   0.9894
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3255  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.7393  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1736
   Biowin6 (MITI Non-Linear Model):   0.0878
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.6907
 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):  1.3E-005 Pa (9.75E-008 mm Hg)
  Log Koa (Koawin est  ): 11.214
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.231 
       Octanol/air (Koa) model:  0.0402 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.893 
       Mackay model           :  0.949 
       Octanol/air (Koa) model:  0.763 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  65.4562 E-12 cm3/molecule-sec
      Half-Life =     0.163 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.961 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.921 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  3.014E+004
      Log Koc:  4.479 

 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 = 1.166 (BCF = 14.67)
       log Kow used: 2.42 (estimated)

 Volatilization from Water:
    Henry LC:  3.93E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.633E+007  hours   (1.097E+006 days)
    Half-Life from Model Lake : 2.873E+008  hours   (1.197E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               2.89  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.79  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       0.00103         3.92         1000       
   Water     16.9            900          1000       
   Soil      83              1.8e+003     1000       
   Sediment  0.12            8.1e+003     0          
     Persistence Time: 1.61e+003 hr

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