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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