ChemSpider 2D Image | Dihydrouracil | C4H6N2O2

Dihydrouracil

  • Molecular FormulaC4H6N2O2
  • Average mass114.103 Da
  • Monoisotopic mass114.042931 Da
  • ChemSpider ID629

More details:






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

2,4(1H,3H)-Pyrimidinedione, dihydro- [ACD/Index Name]
5,6-DIHYDROURACIL
504-07-4 [RN]
Dihydro-2,4(1H,3H)-pyrimidindion [German] [ACD/IUPAC Name]
Dihydro-2,4(1H,3H)-pyrimidinedione [ACD/IUPAC Name]
Dihydro-2,4(1H,3H)-pyrimidinedione [French] [ACD/IUPAC Name]
Dihydropyrimidin-2,4(1H,3H)-dion [German]
dihydropyrimidine-2,4(1H,3H)-dione
Dihydrouracil [Wiki]
T6MVMVTJ [WLN]
More...

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

AI3-50443 [DBID]
AIDS081842 [DBID]
AIDS-081842 [DBID]
bmse000425 [DBID]
C00429 [DBID]
C03919 [DBID]
CHEBI:15901 [DBID]
D7628_SIGMA [DBID]
NSC 11867 [DBID]
NSC11867 [DBID]
More...

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

Density: 1.6±0.1 g/cm3
Boiling Point: 337.0±25.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.7 mmHg at 25°C
Enthalpy of Vaporization: 67.2±6.0 kJ/mol
Flash Point: 208.5±12.4 °C
Index of Refraction: 1.649
Molar Refractivity: 26.2±0.5 cm3
#H bond acceptors: 4
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -1.83
ACD/LogD (pH 5.5): -3.86
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -4.58
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 65 Å2
Polarizability: 10.4±0.5 10-24cm3
Surface Tension: 65.4±7.0 dyne/cm
Molar Volume: 72.0±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) =  -0.65

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  365.66  (Adapted Stein & Brown method)
    Melting Pt (deg C):  148.85  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.08E-006  (Modified Grain method)
    Subcooled liquid VP: 5.59E-005 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):  1.86e+004
       log Kow used: -0.65 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  22056 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.04E-010  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.486E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.65  (KowWin est)
  Log Kaw used:  -8.371  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.721
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6932
   Biowin2 (Non-Linear Model)     :   0.8003
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9470  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6831  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4121
   Biowin6 (MITI Non-Linear Model):   0.4267
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5961
 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):  0.00745 Pa (5.59E-005 mm Hg)
  Log Koa (Koawin est  ): 7.721
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000403 
       Octanol/air (Koa) model:  1.29E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0143 
       Mackay model           :  0.0312 
       Octanol/air (Koa) model:  0.00103 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  17.7963 E-12 cm3/molecule-sec
      Half-Life =     0.601 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     7.212 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0228 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  6.024
      Log Koc:  0.780 

 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: -0.65 (estimated)

 Volatilization from Water:
    Henry LC:  1.04E-010 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 6.013E+006  hours   (2.506E+005 days)
    Half-Life from Model Lake :  6.56E+007  hours   (2.733E+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       0.00249         14.4         1000       
   Water     38.9            360          1000       
   Soil      61              720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr




                    

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