ChemSpider 2D Image | 5-Diazouracil | C4H2N4O2

5-Diazouracil

  • Molecular FormulaC4H2N4O2
  • Average mass138.084 Da
  • Monoisotopic mass138.017776 Da
  • ChemSpider ID10567445

More details:

Featured data source
The Merck Index Online

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

5-Diazouracil
14WEC5S62W
2,4(3H,5H)-Pyrimidinedione, 5-diazo- [ACD/Index Name]
2,4-Dioxo-5-diazopyrimidine
219-427-0 [EINECS]
2435-76-9 [RN]
5-Diazo-2,4(3H,5H)-pyrimidindion [German] [ACD/IUPAC Name]
5-Diazo-2,4(3H,5H)-pyrimidinedione [ACD/IUPAC Name]
5-Diazo-2,4(3H,5H)-pyrimidinedione [French] [ACD/IUPAC Name]
5-Diazo-2,4-dioxopyrimidine
More...

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

AI3-50857 [DBID]
C14480 [DBID]
CCRIS 6839 [DBID]
NSC 23519 [DBID]
NSC23519 [DBID]

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

Density:
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 6
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -3.01
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 59 Å2
Polarizability:
Surface Tension:
Molar Volume:

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™ 

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -6.72

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  565.32  (Adapted Stein & Brown method)
    Melting Pt (deg C):  243.11  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.55E-012  (Modified Grain method)
    Subcooled liquid VP: 5.87E-010 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):  1e+006
       log Kow used: -6.72 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2949 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.33E-014  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.667E-019 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -6.72  (KowWin est)
  Log Kaw used:  -12.265  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.545
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6813
   Biowin2 (Non-Linear Model)     :   0.7376
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8918  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6471  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3015
   Biowin6 (MITI Non-Linear Model):   0.2036
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4378
 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):  7.83E-008 Pa (5.87E-010 mm Hg)
  Log Koa (Koawin est  ): 5.545
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  38.3 
       Octanol/air (Koa) model:  8.61E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.999 
       Mackay model           :  1 
       Octanol/air (Koa) model:  6.89E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   8.5660 E-12 cm3/molecule-sec
      Half-Life =     1.249 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    14.984 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.999 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  20.09
      Log Koc:  1.303 

 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: -6.72 (estimated)

 Volatilization from Water:
    Henry LC:  1.33E-014 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 5.192E+010  hours   (2.163E+009 days)
    Half-Life from Model Lake : 5.664E+011  hours   (2.36E+010 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       0.00077         30           1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr

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