2-methylbutyl propanoate C8H16O2 structure – Flashcards

Flashcard maker : Sonia Kelly

Molecular Formula C8H16O2
Average mass 144.211 Da
Density 0.9±0.1 g/cm3
Boiling Point 156.3±8.0 °C at 760 mmHg
Flash Point 46.7±8.3 °C
Molar Refractivity 40.8±0.3 cm3
Polarizability 16.2±0.5 10-24cm3
Surface Tension 26.3±3.0 dyne/cm
Molar Volume 164.4±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Gas Chromatography
    • Retention Index (Kovats):

      920 (estimated with error: 47) NIST Spectra mainlib_162276, replib_4070
      961 (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: 2438202; 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
      1194 (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: 2438202; 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
    • Retention Index (Normal Alkane):

      955 (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: 2438202; 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: 2438202; 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
      954 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 220 C; End time: 20 min; Start time: 2 min; CAS no: 2438202; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Audino, P.G.; Alzogaray, R.A.; Vassena, C.; Masuh, H.; Fontan, A.; Gatti, P.; Martinez, A.; Camps, F.; Cork, A.; Zerba, E., Volatile compounds secreted by Brindley’s glands of adult Triatoma infestans: identification and biological activity of previously unidentified compounds, Journal of Vector Ecology, 32(1), 2007, 75-82.) NIST Spectra nist ri
      962 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Packed; Start T: 70 C; CAS no: 2438202; 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
      950 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 70 0C (1 min) ^ 3 0C/min -; 142 0C ^ 5 0C/min -; 225 0C (10 min); CAS no: 2438202; Active phase: BPX-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Ortiz, A.; Echeverra, G.; Graell, J.; Lara, I., Calcium dips enhance volatile emission of cold-stored “Fuji Kiki-8” apples, J. Agric. Food Chem., 57(11), 2009, 4931-4938.) NIST Spectra nist ri
      975.6 (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: 2438202; 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
      970.6 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: 35C(5min) =;5C/min =;140C =;15C/min =;250C; CAS no: 2438202; Active phase: HP-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Thierry, A.; Maillard, M.-B.; Herve, C.; Richoux, R.; Lortal, S., Varied volatile compounds are produced by Propionibacterium freudenreichii in Emmental cheese, Food Chem., 87, 2004, 439-446.) NIST Spectra nist ri
      1180 (Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.20 mm; Column length: 50 m; Column type: Capillary; Description: 70 0C (1 min) ^ 3 0C/min -; 142 0C ^ 5 0C/min -; 225 0C (10 min); CAS no: 2438202; Active phase: FFAP; Carrier gas: Helium; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Ortiz, A.; Echeverra, G.; Graell, J.; Lara, I., Calcium dips enhance volatile emission of cold-stored “Fuji Kiki-8” apples, J. Agric. Food Chem., 57(11), 2009, 4931-4938.) NIST Spectra nist ri
      1173 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 220 C; End time: 20 min; Start time: 2 min; CAS no: 2438202; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.32 um; Data type: Normal alkane RI; Authors: Audino, P.G.; Alzogaray, R.A.; Vassena, C.; Masuh, H.; Fontan, A.; Gatti, P.; Martinez, A.; Camps, F.; Cork, A.; Zerba, E., Volatile compounds secreted by Brindley’s glands of adult Triatoma infestans: identification and biological activity of previously unidentified compounds, Journal of Vector Ecology, 32(1), 2007, 75-82.) NIST Spectra nist ri
      1199 (Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70C(1min) => 3C/min => 142C => 5C/min => 225C(10min); CAS no: 2438202; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Echeverria, G.; Correa, E.; Ruiz-Altisent, M.; Graell, J.; Puy, J.; Lopez, L., Characterization of Fuji apples from different harvest dates and storage conditions from measurements of volatiles by gas chromatography and electronic nose, J. Agric. Food Chem., 52, 2004, 3069-3076., Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70C(1min) =>3C/min =>142C =>5C/min =>225C (10min); CAS no: 2438202; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Lara, I.; Echeverria, G.; Graell, J.; Lopez, M.L., Volatile Emission after Controlled Atmosphere Storage of Mondial Gala Apples (Malus domestica): Relationship to Some Involved Enzyme Activities, J. Agric. Food Chem., 55, 2007, 6087-6095., Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70C(1min) =>3C/min =>142C =>5C/min =>225C (10min); CAS no: 2438202; Active phase: HP-FFAP; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Echeverria, G.; Fuentes, M.T.; Graell, J.; Lopez, M.L., Relationships between volatile production, fruit quality and sensory evaluation of Fuji apples stored in different atmospheres by means of multivariate analysis, J. Sci. Food Agric., 84, 2003, 5-20., Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70C(1min) =>3C/min =>142C =>5C/min =>225C(10min); CAS no: 2438202; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Lopez, M.L.; Villatoro, C.; Fuentes, T.; Graell, J.; Lara, I.; Echeverria, G., Volatile compounds, quality parameters and consumer acceptance of ‘Pink Lady(R)’ apples stored in different conditions, Postharvest Biol. Technol., 43, 2007, 55-66.) NIST Spectra nist ri
      1197 (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: 2438202; 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., Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 90 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 35 C; End T: 220 C; End time: 30 min; Start time: 20 min; CAS no: 2438202; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Girard, B.; Lau, O.L., Effect of maturity and storage on quality and volatile production of ‘Jonagold’ apples, Food Res. Int., 28(5), 1995, 465-471.) NIST Spectra nist ri
      1189 (Program type: Isothermal; Col… (show more) umn class: Standard polar; Column type: Packed; Start T: 100 C; CAS no: 2438202; 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):

      1192 (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: 2438202; 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

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

Density: 0.9±0.1 g/cm3
Boiling Point: 156.3±8.0 °C at 760 mmHg
Vapour Pressure: 2.9±0.3 mmHg at 25°C
Enthalpy of Vaporization: 39.3±3.0 kJ/mol
Flash Point: 46.7±8.3 °C
Index of Refraction: 1.411
Molar Refractivity: 40.8±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 5
#Rule of 5 Violations: 0
ACD/LogP: 2.65
ACD/LogD (pH 5.5): 2.42
ACD/BCF (pH 5.5): 40.51
ACD/KOC (pH 5.5): 492.37
ACD/LogD (pH 7.4): 2.42
ACD/BCF (pH 7.4): 40.51
ACD/KOC (pH 7.4): 492.37
Polar Surface Area: 26 Å2
Polarizability: 16.2±0.5 10-24cm3
Surface Tension: 26.3±3.0 dyne/cm
Molar Volume: 164.4±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) = 2.76

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 157.09 (Adapted Stein & Brown method)
 Melting Pt (deg C): -43.92 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 2.88 (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 356.7
 log Kow used: 2.76 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 759.6 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 7.23E-004 atm-m3/mole
 Group Method: 7.56E-004 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 1.532E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.76 (KowWin est)
 Log Kaw used: -1.529 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 4.289
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.8531
 Biowin2 (Non-Linear Model) : 0.9936
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 3.0207 (weeks )
 Biowin4 (Primary Survey Model) : 3.8686 (days )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.7256
 Biowin6 (MITI Non-Linear Model): 0.8865
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.6813
 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): 351 Pa (2.63 mm Hg)
 Log Koa (Koawin est ): 4.289
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 8.56E-009 
 Octanol/air (Koa) model: 4.78E-009 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 3.09E-007 
 Mackay model : 6.84E-007 
 Octanol/air (Koa) model: 3.82E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 6.7133 E-12 cm3/molecule-sec
 Half-Life = 1.593 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 19.119 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 4.97E-007 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 65.27
 Log Koc: 1.815 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 5.560E-002 L/mol-sec
 Kb Half-Life at pH 8: 144.272 days 
 Kb Half-Life at pH 7: 3.950 years 

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 1.421 (BCF = 26.39)
 log Kow used: 2.76 (estimated)

 Volatilization from Water:
 Henry LC: 0.000756 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 2.155 hours
 Half-Life from Model Lake : 124.2 hours (5.175 days)

 Removal In Wastewater Treatment:
 Total removal: 27.22 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 3.39 percent
 Total to Air: 23.73 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 6.63 38.2 1000 
 Water 23 360 1000 
 Soil 70.1 720 1000 
 Sediment 0.249 3.24e+003 0 
 Persistence Time: 311 hr




 

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