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ChemSpider 2D Image | Purine | C5H4N4

Purine

  • Molecular FormulaC5H4N4
  • Average mass120.112 Da
  • Monoisotopic mass120.043594 Da
  • ChemSpider ID1015

More details:

Featured data source
The Merck Index Online

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

{6H-Imidazo[4,5-d]pyrimidine}
{Imidazo[4,5-d]pyrimidine}
1,3-Diazolo[4,5-d]-1,3-diazine
120-73-0 [RN]
1H-Purin [German] [ACD/IUPAC Name]
1H-Purine [ACD/IUPAC Name]
1H-Purine [French] [ACD/IUPAC Name]
204-421-2 [EINECS]
3200 [Beilstein]
6H-Imidazo[4,5-d]pyrimidine
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

UO7450000 [DBID]
W60KTZ3IZY [DBID]
82580_FLUKA [DBID]
AC-907/25014050 [DBID]
AI3-25444 [DBID]
AI3-50208 [DBID]
AIDS023033 [DBID]
AIDS-023033 [DBID]
AIDS081098 [DBID]
AIDS-081098 [DBID]
More...

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

Density: 1.5±0.1 g/cm3
Boiling Point: 424.0±18.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.0 mmHg at 25°C
Enthalpy of Vaporization: 65.2±3.0 kJ/mol
Flash Point: 225.4±14.2 °C
Index of Refraction: 1.738
Molar Refractivity: 32.8±0.3 cm3
#H bond acceptors: 4
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -0.37
ACD/LogD (pH 5.5): -0.46
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 13.31
ACD/LogD (pH 7.4): -0.47
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 13.16
Polar Surface Area: 54 Å2
Polarizability: 13.0±0.5 10-24cm3
Surface Tension: 92.9±3.0 dyne/cm
Molar Volume: 81.5±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) =  -0.82
    Log Kow (Exper. database match) =  -0.37
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  344.47  (Adapted Stein & Brown method)
    Melting Pt (deg C):  120.95  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.62E-006  (Modified Grain method)
    MP  (exp database):  216.5 deg C
    Subcooled liquid VP: 0.000178 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):  1.017e+004
       log Kow used: -0.37 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  5e+005 mg/L (20 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L
    Wat Sol (Exper. database match) =  500000.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.99E-010  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.517E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.37  (exp database)
  Log Kaw used:  -8.090  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.720
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6904
   Biowin2 (Non-Linear Model)     :   0.7864
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9337  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6744  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3795
   Biowin6 (MITI Non-Linear Model):   0.3586
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5498
 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):  0.0237 Pa (0.000178 mm Hg)
  Log Koa (Koawin est  ): 7.720
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000126 
       Octanol/air (Koa) model:  1.29E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00454 
       Mackay model           :  0.01 
       Octanol/air (Koa) model:  0.00103 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  36.0000 E-12 cm3/molecule-sec
      Half-Life =     0.297 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.565 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.00728 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  11.7
      Log Koc:  1.068 

 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: -0.37 (expkow database)

 Volatilization from Water:
    Henry LC:  1.99E-010 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.224E+006  hours   (1.344E+005 days)
    Half-Life from Model Lake : 3.518E+007  hours   (1.466E+006 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       0.00494         7.13         1000       
   Water     38.8            360          1000       
   Soil      61.1            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 578 hr

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