ChemSpider 2D Image | Methyl 2-hydroxy-4-methylpentanoate | C7H14O3

Methyl 2-hydroxy-4-methylpentanoate

  • Molecular FormulaC7H14O3
  • Average mass146.184 Da
  • Monoisotopic mass146.094299 Da
  • ChemSpider ID56633

More details:

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

254-883-4 [EINECS]
2-Hydroxy-4-méthylpentanoate de méthyle [French] [ACD/IUPAC Name]
40348-72-9 [RN]
Methyl 2-hydroxy-4-methylpentanoate [ACD/IUPAC Name]
Methyl-2-hydroxy-4-methylpentanoat [German] [ACD/IUPAC Name]
Pentanoic acid, 2-hydroxy-4-methyl-, methyl ester [ACD/Index Name]
Valeric acid, 2-hydroxy-4-methyl-, methyl ester
2-HYDROXY-ISOCAPRONIC ACID METHYL ESTER
atoms 10 bonds 9
CS-15461
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

G89113PPP5 [DBID]
UNII:G89113PPP5 [DBID]
FEMA No. 3706 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
  • Gas Chromatography

    • Retention Index (Kovats):

      983 (estimated with error: 89) NIST Spectra mainlib_332759, replib_153265, replib_24928

    • Retention Index (Normal Alkane):

      1470 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 230 C; End time: 10 min; Start time: 10 min; CAS no: 40348729; Active phase: TC-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Suhardi, S.; Suzuki, M.; Yoshida, K.; Muto, T.; Fujita, A.; Watanbe, N., Changes in the volatile compounds and in the chemical and physical properties of snake fruit (Salacca edulis Reinw) Cv. Pondoh during maturation, J. Agric. Food Chem., 50, 2002, 7627-7633.) NIST Spectra nist ri

    • Retention Index (Linear):

      1013 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 300 C; CAS no: 40348729; Active phase: DB-1; Phase thickness: 0.33 um; Data type: Linear RI; Authors: Osorio, C.; Alarcon, M.; Moreno, C.; Bonilla, A.; Barrios, J.; Garzon, C.; Duque, C., Characterization of Odor-Active Volatiles in Champa ( Campomanesia lineatifolia R. & P.), J. Agric. Food Chem., 54, 2006, 509-516.) NIST Spectra nist ri
      966 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 280 C; End time: 60 min; Start time: 10 min; CAS no: 40348729; Active phase: CP Sil 5 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Pino, J.; Almora, K.; Marbot, R., Volatile components of papaya (Carica papaya L., maradol variety) fruit, Flavour Fragr. J., 18, 2003, 492-496.) NIST Spectra nist ri
      994.9 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: Multi-step temperature program; T(initial)=60C; T(final)=270C; CAS no: 40348729; Active phase: VF-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., 2007.) NIST Spectra nist ri
      1516 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 220 C; End time: 20 min; Start time: 4 min; CAS no: 40348729; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Osorio, C.; Alarcon, M.; Moreno, C.; Bonilla, A.; Barrios, J.; Garzon, C.; Duque, C., Characterization of Odor-Active Volatiles in Champa ( Campomanesia lineatifolia R. & P.), J. Agric. Food Chem., 54, 2006, 509-516.) NIST Spectra nist ri
      1510 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 65 C; End T: 250 C; End time: 60 min; Start time: 10 min; CAS no: 40348729; Active phase: AT-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Pino, J.; Almora, K.; Marbot, R., Volatile components of papaya (Carica papaya L., maradol variety) fruit, Flavour Fragr. J., 18, 2003, 492-496.) 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: 181.6±8.0 °C at 760 mmHg
Vapour Pressure: 0.2±0.7 mmHg at 25°C
Enthalpy of Vaporization: 48.6±6.0 kJ/mol
Flash Point: 65.6±6.9 °C
Index of Refraction: 1.430
Molar Refractivity: 37.7±0.3 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 0.69
ACD/LogD (pH 5.5): 1.08
ACD/BCF (pH 5.5): 3.88
ACD/KOC (pH 5.5): 91.89
ACD/LogD (pH 7.4): 1.08
ACD/BCF (pH 7.4): 3.88
ACD/KOC (pH 7.4): 91.88
Polar Surface Area: 47 Å2
Polarizability: 14.9±0.5 10-24cm3
Surface Tension: 32.0±3.0 dyne/cm
Molar Volume: 145.8±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) =  0.73

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  195.20  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -15.52  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0984  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  6.122e+004
       log Kow used: 0.73 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.0796e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.49E-005  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.092E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.73  (KowWin est)
  Log Kaw used:  -2.460  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.190
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0109
   Biowin2 (Non-Linear Model)     :   0.9978
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1763  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9952  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7314
   Biowin6 (MITI Non-Linear Model):   0.8853
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5963
 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):  11.7 Pa (0.0881 mm Hg)
  Log Koa (Koawin est  ): 3.190
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  2.55E-007 
       Octanol/air (Koa) model:  3.8E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  9.22E-006 
       Mackay model           :  2.04E-005 
       Octanol/air (Koa) model:  3.04E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   7.0804 E-12 cm3/molecule-sec
      Half-Life =     1.511 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    18.128 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.48E-005 (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]:
  Total Kb for pH > 8 at 25 deg C :  3.440E-005  L/mol-sec
  Kb Half-Life at pH 8:     638.399  years  
  Kb Half-Life at pH 7:    6383.988  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 0.73 (estimated)

 Volatilization from Water:
    Henry LC:  8.49E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      9.572  hours
    Half-Life from Model Lake :      205.8  hours   (8.575 days)

 Removal In Wastewater Treatment:
    Total removal:               6.03  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.71  percent
    Total to Air:                4.23  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       7.16            36.3         1000       
   Water     46.2            360          1000       
   Soil      46.5            720          1000       
   Sediment  0.0889          3.24e+003    0          
     Persistence Time: 258 hr

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