ChemSpider 2D Image | Fasiplon | C13H15N5O2


  • Molecular FormulaC13H15N5O2
  • Average mass273.290 Da
  • Monoisotopic mass273.122589 Da
  • ChemSpider ID181047

More details:

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

106100-65-6 [RN]
6-Ethyl-7-methoxy-5-methyl-2-(5-methyl-1,2,4-oxadiazol-3-yl)imidazo[1,2-a]pyrimidin [German] [ACD/IUPAC Name]
6-Ethyl-7-methoxy-5-methyl-2-(5-methyl-1,2,4-oxadiazol-3-yl)imidazo[1,2-a]pyrimidine [ACD/IUPAC Name]
6-Éthyl-7-méthoxy-5-méthyl-2-(5-méthyl-1,2,4-oxadiazol-3-yl)imidazo[1,2-a]pyrimidine [French] [ACD/IUPAC Name]
Fasiplon [Wiki]
Imidazo[1,2-a]pyrimidine, 6-ethyl-7-methoxy-5-methyl-2-(5-methyl-1,2,4-oxadiazol-3-yl)- [ACD/Index Name]
Fasiplon [INN]

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.4±0.1 g/cm3
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction: 1.670
Molar Refractivity: 73.0±0.5 cm3
#H bond acceptors: 7
#H bond donors: 0
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 3.14
ACD/LogD (pH 5.5): 2.49
ACD/BCF (pH 5.5): 45.71
ACD/KOC (pH 5.5): 536.84
ACD/LogD (pH 7.4): 2.49
ACD/BCF (pH 7.4): 45.71
ACD/KOC (pH 7.4): 536.85
Polar Surface Area: 78 Å2
Polarizability: 28.9±0.5 10-24cm3
Surface Tension: 47.5±7.0 dyne/cm
Molar Volume: 195.5±7.0 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) =  2.90

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  451.67  (Adapted Stein & Brown method)
    Melting Pt (deg C):  190.02  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  8.34E-009  (Modified Grain method)
    Subcooled liquid VP: 4.47E-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):  58.82
       log Kow used: 2.90 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  6576.2 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.01E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  5.099E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.90  (KowWin est)
  Log Kaw used:  -9.910  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.810
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9134
   Biowin2 (Non-Linear Model)     :   0.9572
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3126  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3250  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1306
   Biowin6 (MITI Non-Linear Model):   0.0325
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.1058
 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):  5.96E-005 Pa (4.47E-007 mm Hg)
  Log Koa (Koawin est  ): 12.810
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0503 
       Octanol/air (Koa) model:  1.58 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.645 
       Mackay model           :  0.801 
       Octanol/air (Koa) model:  0.992 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 206.2029 E-12 cm3/molecule-sec
      Half-Life =     0.052 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.622 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.723 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  161.5
      Log Koc:  2.208 

 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 = 1.530 (BCF = 33.9)
       log Kow used: 2.90 (estimated)

 Volatilization from Water:
    Henry LC:  3.01E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.216E+008  hours   (1.34E+007 days)
    Half-Life from Model Lake : 3.508E+009  hours   (1.462E+008 days)

 Removal In Wastewater Treatment:
    Total removal:               4.92  percent
    Total biodegradation:        0.12  percent
    Total sludge adsorption:     4.81  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       8.19e-005       1.24         1000       
   Water     13.3            900          1000       
   Soil      86.5            1.8e+003     1000       
   Sediment  0.243           8.1e+003     0          
     Persistence Time: 1.76e+003 hr


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