ChemSpider 2D Image | (3R,4S)-3,4-Dimethyl-2,5-hexanedione | C8H14O2

(3R,4S)-3,4-Dimethyl-2,5-hexanedione

  • Molecular FormulaC8H14O2
  • Average mass142.196 Da
  • Monoisotopic mass142.099380 Da
  • ChemSpider ID161402

  • defined stereocentres - 2 of 2 defined stereocentres

More details:

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

(3R,4S)-3,4-Dimethyl-2,5-hexandion [German] [ACD/IUPAC Name]
(3R,4S)-3,4-Dimethyl-2,5-hexanedione [ACD/IUPAC Name]
(3R,4S)-3,4-Diméthyl-2,5-hexanedione [French] [ACD/IUPAC Name]
2,5-Hexanedione, 3,4-dimethyl-, (3R,4S)- [ACD/Index Name]
(3r,4s)-3,4-dimethylhexane-2,5-dione
2,2'-(propane-1,3-diyldiimino)bis[(4-methoxyphenyl)acetonitrile]
28895-02-5 [RN]

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

Density: 0.9±0.1 g/cm3
Boiling Point: 213.2±13.0 °C at 760 mmHg
Vapour Pressure: 0.2±0.4 mmHg at 25°C
Enthalpy of Vaporization: 45.0±3.0 kJ/mol
Flash Point: 76.4±16.8 °C
Index of Refraction: 1.417
Molar Refractivity: 39.1±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 0.43
ACD/LogD (pH 5.5): 0.52
ACD/BCF (pH 5.5): 1.45
ACD/KOC (pH 5.5): 45.44
ACD/LogD (pH 7.4): 0.52
ACD/BCF (pH 7.4): 1.45
ACD/KOC (pH 7.4): 45.44
Polar Surface Area: 34 Å2
Polarizability: 15.5±0.5 10-24cm3
Surface Tension: 27.2±3.0 dyne/cm
Molar Volume: 155.6±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) =  0.02

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  179.42  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -16.14  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.36  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  7.823e+004
       log Kow used: 0.02 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.4905e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.80E-008  atm-m3/mole
   Group Method:   3.54E-008  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  3.253E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.02  (KowWin est)
  Log Kaw used:  -5.496  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.516
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6935
   Biowin2 (Non-Linear Model)     :   0.5209
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8400  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5981  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4249
   Biowin6 (MITI Non-Linear Model):   0.4914
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.5977
 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):  165 Pa (1.24 mm Hg)
  Log Koa (Koawin est  ): 5.516
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.81E-008 
       Octanol/air (Koa) model:  8.05E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  6.55E-007 
       Mackay model           :  1.45E-006 
       Octanol/air (Koa) model:  6.44E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  12.6138 E-12 cm3/molecule-sec
      Half-Life =     0.848 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    10.176 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.05E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  3.175
      Log Koc:  0.502 

 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: 0.02 (estimated)

 Volatilization from Water:
    Henry LC:  3.54E-008 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 1.972E+004  hours   (821.8 days)
    Half-Life from Model Lake : 2.153E+005  hours   (8969 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       0.616           20.4         1000       
   Water     40.8            360          1000       
   Soil      58.5            720          1000       
   Sediment  0.0753          3.24e+003    0          
     Persistence Time: 493 hr

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