ChemSpider 2D Image | 1,5-Dimethyl-5-(3-oxo-1-cyclohexen-1-yl)-2,4,6(1H,3H,5H)-pyrimidinetrione | C12H14N2O4

1,5-Dimethyl-5-(3-oxo-1-cyclohexen-1-yl)-2,4,6(1H,3H,5H)-pyrimidinetrione

  • Molecular FormulaC12H14N2O4
  • Average mass250.251 Da
  • Monoisotopic mass250.095352 Da
  • ChemSpider ID141005

More details:

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

1,5-Dimethyl-5-(3-oxo-1-cyclohexen-1-yl)-2,4,6(1H,3H,5H)-pyrimidinetrione [ACD/IUPAC Name]
1,5-Diméthyl-5-(3-oxo-1-cyclohexén-1-yl)-2,4,6(1H,3H,5H)-pyrimidinetrione [French] [ACD/IUPAC Name]
1,5-Dimethyl-5-(3-oxo-1-cyclohexen-1-yl)-2,4,6(1H,3H,5H)-pyrimidintrion [German] [ACD/IUPAC Name]
2,4,6(1H,3H,5H)-Pyrimidinetrione, 1,5-dimethyl-5-(3-oxo-1-cyclohexen-1-yl)- [ACD/Index Name]
3,5-Dimethyl-5-(3-oxocyclohex-1-enyl)-hexahydropyrimidin-2,4,6-trione
3'-Ketohexobarbital
3'-Ketohexobarbitone
3-Khxb
3'-Oxohexobarbital
427-30-5 [RN]

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

  • Gas Chromatography

    • Retention Index (Kovats):

      2252 (estimated with error: 89) NIST Spectra mainlib_281585
      2055 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Packed; Heat rate: 30 K/min; Start T: 100 C; End T: 310 C; End time: 5 min; Start time: 3 min; CAS no: 427305; Active phase: SE-30; Carrier gas: N2; Data type: Kovats RI; Authors: Maurer, H.H., Identification and differentiation of barbiturates, other sedative-hypnotics and their metabolites in urine integrated in a general screening procedure using computerized gas chromatography-mass spectrometry, J. Chromatogr., 530, 1990, 307-326.) NIST Spectra nist ri

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

Density: 1.3±0.1 g/cm3
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction: 1.552
Molar Refractivity: 60.5±0.3 cm3
#H bond acceptors: 6
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: -0.26
ACD/LogD (pH 5.5): 0.52
ACD/BCF (pH 5.5): 1.48
ACD/KOC (pH 5.5): 45.93
ACD/LogD (pH 7.4): 0.43
ACD/BCF (pH 7.4): 1.18
ACD/KOC (pH 7.4): 36.75
Polar Surface Area: 84 Å2
Polarizability: 24.0±0.5 10-24cm3
Surface Tension: 51.4±3.0 dyne/cm
Molar Volume: 189.3±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) =  0.26

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  563.40  (Adapted Stein & Brown method)
    Melting Pt (deg C):  242.21  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.93E-012  (Modified Grain method)
    Subcooled liquid VP: 6.58E-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):  1.423e+004
       log Kow used: 0.26 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3556.8 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Imides
       Vinyl/Allyl Ketones

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.73E-016  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.780E-017 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.26  (KowWin est)
  Log Kaw used:  -14.150  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.410
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.4513
   Biowin2 (Non-Linear Model)     :   0.0617
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.4115  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3110  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2192
   Biowin6 (MITI Non-Linear Model):   0.0636
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4827
 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):  8.77E-008 Pa (6.58E-010 mm Hg)
  Log Koa (Koawin est  ): 14.410
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  34.2 
       Octanol/air (Koa) model:  63.1 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.999 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  87.7888 E-12 cm3/molecule-sec
      Half-Life =     0.122 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.462 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.137500 E-17 cm3/molecule-sec
      Half-Life =     1.007 Days (at 7E11 mol/cm3)
      Half-Life =     24.179 Hrs
   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    :  14.35
      Log Koc:  1.157 

 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: 0.26 (estimated)

 Volatilization from Water:
    Henry LC:  1.73E-016 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 5.354E+012  hours   (2.231E+011 days)
    Half-Life from Model Lake : 5.841E+013  hours   (2.434E+012 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       5.21e-006       2.61         1000       
   Water     45.2            900          1000       
   Soil      54.7            1.8e+003     1000       
   Sediment  0.0884          8.1e+003     0          
     Persistence Time: 989 hr

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