ChemSpider 2D Image | 1h-pyrazolo[4,3-d]pyrimidine-5,7-diol | C5H4N4O2

1h-pyrazolo[4,3-d]pyrimidine-5,7-diol

  • Molecular FormulaC5H4N4O2
  • Average mass152.111 Da
  • Monoisotopic mass152.033432 Da
  • ChemSpider ID10495116

More details:






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

135787-30-3 [RN]
1H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidine-5,7-dione
1H-Pyrazolo[4,3-d]pyrimidin-5,7(4H,6H)-dion [German] [ACD/IUPAC Name]
1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione [ACD/Index Name] [ACD/IUPAC Name]
1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione [French] [ACD/Index Name] [ACD/IUPAC Name]
1h-pyrazolo[4,3-d]pyrimidine-5,7-diol [ACD/Index Name] [ACD/IUPAC Name]
1H-Pyrazolo[4,3-d]pyrimidine-5,7-diol [French] [ACD/Index Name] [ACD/IUPAC Name]
40769-81-1 [RN]
[40769-81-1] [RN]
1,4-dihydropyrazolo[4,3-d]pyrimidine-5,7-dione
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    Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

    Density: 1.9±0.1 g/cm3
    Boiling Point: 662.9±58.0 °C at 760 mmHg
    Vapour Pressure: 0.0±2.1 mmHg at 25°C
    Enthalpy of Vaporization: 101.0±3.0 kJ/mol
    Flash Point: 354.7±32.3 °C
    Index of Refraction: 1.903
    Molar Refractivity: 36.6±0.3 cm3
    #H bond acceptors: 6
    #H bond donors: 3
    #Freely Rotating Bonds: 0
    #Rule of 5 Violations: 0
    ACD/LogP: -1.35
    ACD/LogD (pH 5.5): -3.97
    ACD/BCF (pH 5.5): 1.00
    ACD/KOC (pH 5.5): 1.00
    ACD/LogD (pH 7.4): -4.10
    ACD/BCF (pH 7.4): 1.00
    ACD/KOC (pH 7.4): 1.00
    Polar Surface Area: 95 Å2
    Polarizability: 14.5±0.5 10-24cm3
    Surface Tension: 170.2±3.0 dyne/cm
    Molar Volume: 78.4±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) =  -1.15
    
     Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
        Boiling Pt (deg C):  462.41  (Adapted Stein & Brown method)
        Melting Pt (deg C):  195.04  (Mean or Weighted MP)
        VP(mm Hg,25 deg C):  3.94E-009  (Modified Grain method)
        Subcooled liquid VP: 2.41E-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):  3.486e+004
           log Kow used: -1.15 (estimated)
           no-melting pt equation used
    
     Water Sol Estimate from Fragments:
        Wat Sol (v1.01 est) =  1.2092e+005 mg/L
    
     ECOSAR Class Program (ECOSAR v0.99h):
        Class(es) found:
           Imides
    
     Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
       Bond Method :   3.67E-014  atm-m3/mole
       Group Method:   Incomplete
     Henrys LC [VP/WSol estimate using EPI values]:  2.262E-014 atm-m3/mole
    
     Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
      Log Kow used:  -1.15  (KowWin est)
      Log Kaw used:  -11.824  (HenryWin est)
          Log Koa (KOAWIN v1.10 estimate):  10.674
          Log Koa (experimental database):  None
    
     Probability of Rapid Biodegradation (BIOWIN v4.10):
       Biowin1 (Linear Model)         :   0.6751
       Biowin2 (Non-Linear Model)     :   0.7003
     Expert Survey Biodegradation Results:
       Biowin3 (Ultimate Survey Model):   2.8630  (weeks       )
       Biowin4 (Primary Survey Model) :   3.6283  (days-weeks  )
     MITI Biodegradation Probability:
       Biowin5 (MITI Linear Model)    :   0.2678
       Biowin6 (MITI Non-Linear Model):   0.1486
     Anaerobic Biodegradation Probability:
       Biowin7 (Anaerobic Linear Model):  0.7407
     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):  3.21E-005 Pa (2.41E-007 mm Hg)
      Log Koa (Koawin est  ): 10.674
       Kp (particle/gas partition coef. (m3/ug)):
           Mackay model           :  0.0934 
           Octanol/air (Koa) model:  0.0116 
       Fraction sorbed to airborne particulates (phi):
           Junge-Pankow model     :  0.771 
           Mackay model           :  0.882 
           Octanol/air (Koa) model:  0.481 
    
     Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
       Hydroxyl Radicals Reaction:
          OVERALL OH Rate Constant = 201.0000 E-12 cm3/molecule-sec
          Half-Life =     0.053 Days (12-hr day; 1.5E6 OH/cm3)
          Half-Life =     0.639 Hrs
       Ozone Reaction:
          No Ozone Reaction Estimation
       Fraction sorbed to airborne particulates (phi): 0.827 (Junge,Mackay)
        Note: the sorbed fraction may be resistant to atmospheric oxidation
    
     Soil Adsorption Coefficient (PCKOCWIN v1.66):
          Koc    :  10
          Log Koc:  1.000 
    
     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: -1.15 (estimated)
    
     Volatilization from Water:
        Henry LC:  3.67E-014 atm-m3/mole  (estimated by Bond SAR Method)
        Half-Life from Model River: 1.968E+010  hours   (8.198E+008 days)
        Half-Life from Model Lake : 2.146E+011  hours   (8.943E+009 days)
    
     Removal In Wastewater Treatment:
        Total removal:               1.85  percent
        Total biodegradation:        0.09  percent
        Total sludge adsorption:     1.75  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       4.97e-006       1.28         1000       
       Water     39              360          1000       
       Soil      61              720          1000       
       Sediment  0.0713          3.24e+003    0          
         Persistence Time: 579 hr
    
    
    
    
                        

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