ChemSpider 2D Image | isobutyl 2-methylbutyrate | C9H18O2

isobutyl 2-methylbutyrate

  • Molecular FormulaC9H18O2
  • Average mass158.238 Da
  • Monoisotopic mass158.130676 Da
  • ChemSpider ID92878

More details:






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

219-492-5 [EINECS]
2445-67-2 [RN]
2-Méthylbutanoate d'isobutyle [French] [ACD/IUPAC Name]
2-methylpropyl 2-methylbutanoate
Butanoic acid, 2-methyl-, 2-methylpropyl ester [ACD/Index Name]
Isobutyl 2-methylbutanoate [ACD/IUPAC Name]
isobutyl 2-methylbutyrate
ISOBUTYL 2-METHYLBUTYRATE, (R)-
ISOBUTYL 2-METHYLBUTYRATE, (S)-
Isobutyl-2-methylbutanoat [German] [ACD/IUPAC Name]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

88RJ33L6G3 [DBID]
AI3-33627 [DBID]
O31X52FRTV [DBID]
VLV27TMF9N [DBID]
  • Gas Chromatography
    • Retention Index (Kovats):

      955 (estimated with error: 47) NIST Spectra mainlib_372889, replib_25816, replib_69695
      991 (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: 2 K/min; Start T: 30 C; End T: 210 C; Start time: 4 min; CAS no: 2445672; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Takeoka, G.R.; Flath, R.A.; Mon, T.R.; Teranishi, R.; Guentert, M., Volatile Constituents of Apricot (Prunus armeniaca), J. Agric. Food Chem., 38(2), 1990, 471-477.) NIST Spectra nist ri
      995 (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: 2 K/min; Start T: 30 C; End T: 210 C; Start time: 4 min; CAS no: 2445672; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Takeoka, G.R.; Flath, R.A.; Mon, T.R.; Teranishi, R.; Guentert, M., Volatile Constituents of Apricot (Prunus armeniaca), J. Agric. Food Chem., 38(2), 1990, 471-477.) NIST Spectra nist ri
      985 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 3 m; Column type: Packed; Start T: 100 C; CAS no: 2445672; Active phase: SE-30; Carrier gas: N2; Substrate: Chromosorb W AW (60-80 mesh); Data type: Kovats RI; Authors: Chastrette, M.; Heintz, M.; Druilhe, A.; Lefort, D., Analyse chromatographique d'esters aliphatiques satures. Relations retention-structure et prevision de la retention, Bull. Soc. Chim. Fr., , 1974, 1852-1856.) NIST Spectra nist ri
      1004 (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: 5 K/min; Start T: 40 C; End T: 250 C; Start time: 1 min; CAS no: 2445672; Active phase: HP-5; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Bouzouita, N.; Kachouri, F.; Hamdi, M.; Chaabouni, M.M., Antimicrobial activity of essential oils from Tunisian aromatic plants, Flavour Fragr. J., 18, 2003, 380-383.) NIST Spectra nist ri
      1183 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C (10min) => 3C/min => 100C => 5C/min => 220C; CAS no: 2445672; Active phase: Carbowax; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Rowan, D.D.; Lane, H.P.; Allen, J.M.; Fielder, S.; Hunt, M.B., Biosynthesis of 2-methylbutyl, 2-methyl-2-butenyl, and 2-methylbutanoate esters in Red Delicious and Granny Smith apples using deuterium-labeled substrates, J. Agric. Food Chem., 44, 1996, 3276-3285.) NIST Spectra nist ri
      1177 (Program type: Isothermal; Col... (show more) umn class: Standard polar; Column length: 3 m; Column type: Packed; Start T: 100 C; CAS no: 2445672; Active phase: Carbowax 20M; Substrate: Chromosorb WAW (60-80 mesh); Data type: Kovats RI; Authors: Chastrette, M.; Heintz, M.; Druilhe, A.; Lefort, D., Analyse chromatographique d'esters aliphatiques satures. Relations retention-structure et prevision de la retention, Bull. Soc. Chim. Fr., , 1974, 1852-1856.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      986 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 45 C; End T: 230 C; CAS no: 2445672; Active phase: ZB-1; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mierendorff, H.-G.; Stahl-Biskup, E.; Posthumus, M.A.; van Beek, T.A., Composition of commercial Cape chamomile oil (Eriocephalus punctulatus), Flavour Fragr. J., 18, 2003, 510-514., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 45 C; End T: 230 C; CAS no: 2445672; Active phase: ZB-1; Carrier gas: Nitrogen; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mierendorff, H.-G.; Stahl-Biskup, E.; Posthumus, M.A.; van Beek, T.A., Composition of commercial Cape chamomile oil (Eriocephalus punctuatus / Eriocephalus tenuifolius), 2008.) NIST Spectra nist ri
      988 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 250 C; End time: 40 min; CAS no: 2445672; Active phase: HP-1; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Filippi, J.-J.; Lanfranchi, D.-A.; Prado, S.; Baldovini, N.; Meierhenrich, U.J., Composition, Enantiomeric Distribution, and Antibacterial Activity of the Essential Oil of Achillea ligustica All. from Corsica, J. Agric. Food Chem., 54, 2006, 6308-6313.) NIST Spectra nist ri
      991 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 2445672; Active phase: SE-30; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004.) NIST Spectra nist ri
      994 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column type: Packed; Start T: 70 C; CAS no: 2445672; Active phase: SE-30; Data type: Normal alkane RI; Authors: Yabumoto, K.; Jennings, W.G.; Yamaguchi, M., Gas chromatographic retention as identification criteria, Anal. Biochem., 78, 1977, 244-251.) NIST Spectra nist ri
      1015 (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: 50 C; End T: 280 C; End time: 10 min; Start time: 2 min; CAS no: 2445672; Active phase: HP-5; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Pino, J.; Sauri-Duch, E.; Marbot, R., Changes in volatile compounds of Habanero chile pepper (Capsicum chinense Jack. cv. Habanero) at two ripening stages, Food Chem., 94, 2006, 394-398.) NIST Spectra nist ri
      1009.2 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 30 C; End T: 260 C; End time: 28 min; Start time: 2 min; CAS no: 2445672; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Leffingwell, J.C.; Alford, E.D., Volatile constituents of Perique tobacco, Electron. J. Environ. Agric. Food Chem., 4(2), 2005, 899-915.) NIST Spectra nist ri
      978.3 (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: 8 K/min; Start T: 40 C; End T: 250 C; End time: 10 min; Start time: 2 min; CAS no: 2445672; Active phase: ZB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mauriello, G.; Marino, R.; D'Auria, M.; Cerone, G.; Luigi Rana, G., Determination of volatile organic compounds from Truffles via SPME-GC-MS, J. Chromatogr. Sci., 42(6), 2004, 299-305.) NIST Spectra nist ri
      1002 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column type: Capillary; Heat rate: 6 K/min; Start T: 35 C; End T: 200 C; Start time: 2 min; CAS no: 2445672; Active phase: HP-5; Data type: Normal alkane RI; Authors: Larsen, T.O.; Frisvad, J.C., Characterization of volatile metabolites from 47 Penicillium taxa, Mycol. Res., 99(10), 1995, 1153-1166.) NIST Spectra nist ri
      1171 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.2 mm; Column length: 80 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 70 C; End T: 170 C; CAS no: 2445672; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Anker, L.S.; Jurs, P.C.; Edwards, P.A., Quantitative structure-retention relationship studies of odor-active aliphatic compounds with oxygen-containing functional groups, Anal. Chem., 62, 1990, 2676-2684., Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 2445672; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004.) NIST Spectra nist ri
      1168.6 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Description: 40C=> 10C/min =>60C=> 3C/min =>200C (15min); CAS no: 2445672; Active phase: Carbowax 20M; Carrier gas: He; Phase thickness: 0.2 um; Data type: Normal alkane RI; Authors: Diaz, P.; Ibanez, E.; Senorans, F.J.; Reglero, G., Truffle aroma characterization by headspace solid-phase microextraction, J. Chromatogr. A, 1017, 2003, 207-214.) NIST Spectra nist ri
      1185 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60C(10min) => 4C/min =>220C(10min) =>1C/min =>240C; CAS no: 2445672; Active phase: Innowax FSC; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Baser, K.H.C.; Demirei, B.; Ozek, T.; Akalin, E.; Ozhatay, N., Micro-distilled volatile compounds from Ferulago species growing in Western Turkey, Pharm. Biol., 40(6), 2002, 466-471., Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60C(10min)=>4C/min =>220C(10min)=>1C/min=>240C; CAS no: 2445672; Active phase: HP-Innowax FSC; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kaya, A.; Demirci, B.; Baser, K.H.C., The essential oil of Seseli tortuosum L. growing in Turkey, Flavour Fragr. J., 18, 2003, 159-161., Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 220 C; End time: 10 min; Start time: 10 min; CAS no: 2445672; Active phase: Innowax; Carrier gas: He; Data type: Normal alkane RI; Authors: Suleimenov, E.M.; Atazharova, G.A.; Demirchi, B.; Baser, K.H.C.; Adekenov, S.M., Essential oil composition of Artemisia Lercheana and A. Sieversiana of Kazakhstan flora, in Recent problems of development of new medicines of natural origin, Proceedings of symposium, St.Petersburg - Pushkin, 2003, 382-385.) NIST Spectra nist ri
      1178 (Program type: Isothermal; Col... (show more) umn class: Standard polar; Column type: Packed; Start T: 100 C; CAS no: 2445672; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Yabumoto, K.; Jennings, W.G.; Yamaguchi, M., Gas chromatographic retention as identification criteria, Anal. Biochem., 78, 1977, 244-251.) NIST Spectra nist ri
    • Retention Index (Linear):

      1015 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 60 0C (3 min) ^ 2 K/min -> 220 0C ^ 5 K/min -> 250 0C (15 min); CAS no: 2445672; Active phase: DB-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Boulanger, R.; Crouzet, J., Free and bound flavour components of Amazonian fruits: 2. cupuacu volatile compounds, Flavour Fragr. J., 15, 2000, 251-257.) NIST Spectra nist ri
      1180 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 250 C; CAS no: 2445672; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Kourkoutas, D.; Elmore, J.S.; Mottram, D.S., Comparison of the volatile compositions and flavour properties of cantaloupe, Galia and honeydew muskmelons, Food Chem., 97, 2006, 95-102.) NIST Spectra nist ri
      1179 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 60 0C (3 min) ^ 2 K/min -> 220 0C ^ 5 K/min -> 250 0C (15 min); CAS no: 2445672; Active phase: DB-Wax; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Boulanger, R.; Crouzet, J., Free and bound flavour components of Amazonian fruits: 2. cupuacu volatile compounds, Flavour Fragr. J., 15, 2000, 251-257.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 0.9±0.1 g/cm3
Boiling Point: 165.2±8.0 °C at 760 mmHg
Vapour Pressure: 1.9±0.3 mmHg at 25°C
Enthalpy of Vaporization: 40.2±3.0 kJ/mol
Flash Point: 50.5±5.4 °C
Index of Refraction: 1.415
Molar Refractivity: 45.4±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 5
#Rule of 5 Violations: 0
ACD/LogP: 3.00
ACD/LogD (pH 5.5): 2.70
ACD/BCF (pH 5.5): 66.84
ACD/KOC (pH 5.5): 704.63
ACD/LogD (pH 7.4): 2.70
ACD/BCF (pH 7.4): 66.84
ACD/KOC (pH 7.4): 704.63
Polar Surface Area: 26 Å2
Polarizability: 18.0±0.5 10-24cm3
Surface Tension: 26.1±3.0 dyne/cm
Molar Volume: 181.3±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) =  3.17

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  165.67  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -43.28  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.92  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  136.1
       log Kow used: 3.17 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  405.63 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   9.60E-004  atm-m3/mole
   Group Method:   1.65E-003  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.937E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.17  (KowWin est)
  Log Kaw used:  -1.406  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.576
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8464
   Biowin2 (Non-Linear Model)     :   0.9922
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9897  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8484  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5842
   Biowin6 (MITI Non-Linear Model):   0.7578
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4099
 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):  233 Pa (1.75 mm Hg)
  Log Koa (Koawin est  ): 4.576
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.29E-008 
       Octanol/air (Koa) model:  9.25E-009 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.64E-007 
       Mackay model           :  1.03E-006 
       Octanol/air (Koa) model:  7.4E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   6.7820 E-12 cm3/molecule-sec
      Half-Life =     1.577 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    18.925 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 7.46E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  103
      Log Koc:  2.013 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  7.920E-003  L/mol-sec
  Kb Half-Life at pH 8:       2.773  years  
  Kb Half-Life at pH 7:      27.733  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 1.743 (BCF = 55.33)
       log Kow used: 3.17 (estimated)

 Volatilization from Water:
    Henry LC:  0.00165 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:       1.73  hours
    Half-Life from Model Lake :      124.4  hours   (5.181 days)

 Removal In Wastewater Treatment:
    Total removal:              43.65  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     5.80  percent
    Total to Air:               37.76  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       6.4             37.8         1000       
   Water     20.7            360          1000       
   Soil      72.5            720          1000       
   Sediment  0.477           3.24e+003    0          
     Persistence Time: 321 hr




                    

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