ChemSpider 2D Image | ethyl 3-hydroxy-3-methylbutyrate | C7H14O3

ethyl 3-hydroxy-3-methylbutyrate

  • Molecular FormulaC7H14O3
  • Average mass146.184 Da
  • Monoisotopic mass146.094299 Da
  • ChemSpider ID78968

More details:

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

18267-36-2 [RN]
242-147-5 [EINECS]
3-Hydroxy-3-méthylbutanoate d'éthyle [French] [ACD/IUPAC Name]
Butanoic acid, 3-hydroxy-3-methyl-, ethyl ester [ACD/Index Name]
Ethyl 3-hydroxy-3-methylbutanoate [ACD/IUPAC Name]
ethyl 3-hydroxy-3-methylbutyrate
Ethyl-3-hydroxy-3-methylbutanoat [German] [ACD/IUPAC Name]
(CH3)2C(OH)CH2C(O)OC2H5
30385-86-5 [RN]
Butanoic acid,3-hydroxy-3-methyl-, ethyl ester
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

  • Experimental Physico-chemical Properties
  • Gas Chromatography

    • Retention Index (Kovats):

      976 (estimated with error: 89) NIST Spectra mainlib_191874, replib_105728

    • Retention Index (Normal Alkane):

      929 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 250 C; CAS no: 18267362; Active phase: HP-1; Data type: Normal alkane RI; Authors: Ong, P.K.C.; Acree, T.E.; Lavin, E.H., Characterization of volatiles in rambutan fruit (Nephelium lappaceum L.), J. Agric. Food Chem., 46(2), 1998, 611-615.) NIST Spectra nist ri
      930 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; CAS no: 18267362; Active phase: HP-1; Data type: Normal alkane RI; Authors: Ong, P.K.C.; Acree, T.E.; Lavin, E.H., Characterization of volatiles in rambutan fruit (Nephelium lappaceum L.), J. Agric. Food Chem., 46(2), 1998, 611-615.) NIST Spectra nist ri
      955 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 2 min; CAS no: 18267362; Active phase: SPB-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Pino, J.A.; Marbot, R.; Vazquez, C., Characterization of volatiles in Loquat fruit (Eriobotrya japonica Lindl.), Revista CENIC Ciencias Quimicas, 33(3), 2002, 115-119.) NIST Spectra nist ri
      1400 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 200 C; Start time: 2 min; CAS no: 18267362; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Umano, K.; Hagi, Y.; Shibamoto, T., Volatile chemicals identified in extracts from newly hybrid citrus, dekopon (Shiranuhi mandarin Suppl. J.), J. Agric. Food Chem., 50, 2002, 5355-5359.) NIST Spectra nist ri

    • Retention Index (Linear):

      926 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C (5min) => 2C/min => 200C => 5C/min => 250C (15min); CAS no: 18267362; Active phase: DB-5MS; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Boulanger, R.; Crouzet, J., Identification of the aroma components of acerola (Malphigia glabra L.): free and bound flavor compounds, Food Chem., 74, 2001, 209-216.) NIST Spectra nist ri
      920 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C (5min) => 2C/min => 200C => 5C/min => 250C (15min); CAS no: 18267362; Active phase: DB-5MS; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Boulanger, R.; Crouzet, J., Identification of the aroma components of acerola (Malphigia glabra L.): free and bound flavor compounds, Food Chem., 74, 2001, 209-216.) NIST Spectra nist ri

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

Density: 1.0±0.1 g/cm3
Boiling Point: 215.7±13.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.9 mmHg at 25°C
Enthalpy of Vaporization: 52.6±6.0 kJ/mol
Flash Point: 83.8±12.6 °C
Index of Refraction: 1.434
Molar Refractivity: 37.8±0.3 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 0.33
ACD/LogD (pH 5.5): 0.75
ACD/BCF (pH 5.5): 2.21
ACD/KOC (pH 5.5): 61.34
ACD/LogD (pH 7.4): 0.75
ACD/BCF (pH 7.4): 2.21
ACD/KOC (pH 7.4): 61.34
Polar Surface Area: 47 Å2
Polarizability: 15.0±0.5 10-24cm3
Surface Tension: 32.8±3.0 dyne/cm
Molar Volume: 145.1±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) =  0.76

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  189.92  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -0.85  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.135  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  5.705e+004
       log Kow used: 0.76 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  94605 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.99E-008  atm-m3/mole
   Group Method:   5.48E-009  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  4.552E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.76  (KowWin est)
  Log Kaw used:  -6.090  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.850
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6682
   Biowin2 (Non-Linear Model)     :   0.9641
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8042  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7123  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7886
   Biowin6 (MITI Non-Linear Model):   0.8877
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4870
 Ready Biodegradability Prediction:   YES

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  16 Pa (0.12 mm Hg)
  Log Koa (Koawin est  ): 6.850
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.88E-007 
       Octanol/air (Koa) model:  1.74E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  6.77E-006 
       Mackay model           :  1.5E-005 
       Octanol/air (Koa) model:  0.000139 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.9355 E-12 cm3/molecule-sec
      Half-Life =     2.718 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    32.614 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.09E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.458
      Log Koc:  0.164 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  3.825E-003  L/mol-sec
  Kb Half-Life at pH 8:       5.742  years  
  Kb Half-Life at pH 7:      57.424  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 0.76 (estimated)

 Volatilization from Water:
    Henry LC:  5.48E-009 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 1.292E+005  hours   (5383 days)
    Half-Life from Model Lake : 1.409E+006  hours   (5.872E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               1.87  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.78  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       0.122           65.2         1000       
   Water     36.5            360          1000       
   Soil      63.4            720          1000       
   Sediment  0.0703          3.24e+003    0          
     Persistence Time: 588 hr

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