ChemSpider 2D Image | alloxan | C4H2N2O4

alloxan

  • Molecular FormulaC4H2N2O4
  • Average mass142.070 Da
  • Monoisotopic mass142.001450 Da
  • ChemSpider ID5577

More details:

Featured data source
The Merck Index Online

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

1,3-diazinane-2,4,5,6-tetrone
2,4,5,6(1H,3H)-Pyrimidinetetrone [ACD/Index Name] [ACD/IUPAC Name]
2,4,5,6(1H,3H)-Pyrimidinetétrone [French] [ACD/IUPAC Name]
2,4,5,6(1H,3H)-Pyrimidintetron [German] [ACD/IUPAC Name]
2,4,5,6-Pyrimidintetrone
2,4,5,6-Tetraoxohexahydropyrimidine
2,5-Pyrimidinedione, 4,6-dihydroxy- [ACD/Index Name]
200-062-0 [EINECS]
4-24-00-02137 [Beilstein]
50-71-5 [RN]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

AI3-15282 [DBID]
AIDS018463 [DBID]
AIDS-018463 [DBID]
DivK1c_006961 [DBID]
KBio1_001905 [DBID]
KBio2_001560 [DBID]
KBio2_004128 [DBID]
KBio2_006696 [DBID]
KBio3_001650 [DBID]
KBioGR_001132 [DBID]
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Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.7±0.1 g/cm3
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction: 1.519
Molar Refractivity: 25.7±0.3 cm3
#H bond acceptors: 6
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -1.84
ACD/LogD (pH 5.5): -2.64
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -3.66
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 92 Å2
Polarizability: 10.2±0.5 10-24cm3
Surface Tension: 62.6±3.0 dyne/cm
Molar Volume: 84.5±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) =  -1.04
    Log Kow (Exper. database match) =  -1.84
       Exper. Ref:  BioByte (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  503.65  (Adapted Stein & Brown method)
    Melting Pt (deg C):  214.30  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  6.7E-011  (Modified Grain method)
    MP  (exp database):  256 dec deg C
    Subcooled liquid VP: 2.22E-008 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: -1.84 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  80 mg/L ( 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) =  80.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.74E-015  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.252E-017 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -1.84  (exp database)
  Log Kaw used:  -12.951  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.111
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6799
   Biowin2 (Non-Linear Model)     :   0.7293
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8852  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6428  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2895
   Biowin6 (MITI Non-Linear Model):   0.1714
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8361
 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):  2.96E-006 Pa (2.22E-008 mm Hg)
  Log Koa (Koawin est  ): 11.111
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.01 
       Octanol/air (Koa) model:  0.0317 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.973 
       Mackay model           :  0.988 
       Octanol/air (Koa) model:  0.717 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   2.0000 E-12 cm3/molecule-sec
      Half-Life =     5.348 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    64.176 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.981 (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: -1.84 (expkow database)

 Volatilization from Water:
    Henry LC:  2.74E-015 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.547E+011  hours   (1.061E+010 days)
    Half-Life from Model Lake : 2.778E+012  hours   (1.158E+011 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       1.17e-005       128          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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