4-Methylpentanoic acid

Experimental data
Predicted - ACD/Labs
Predicted - EPISuite
Predicted - ChemAxon
Predicted - Mcule

References
- Fema No:
  
  3463 Sigma-Aldrich ALDRICH-W346306

Experimental Physico-chemical Properties

Experimental Refraction Index:

Appearance:

Stability:

Stable. Incompatible with strong bases, strong oxidizing agents. OU Chemical Safety Data (No longer updated) More details
Toxicity:

ORL-RAT LD50 2050 mg kg-1 OU Chemical Safety Data (No longer updated) More details

Chemical Class:

Gas Chromatography

Retention Index (Kovats):

910 (estimated with error: 51) NIST Spectra mainlib_1910, replib_114759, replib_109700

Retention Index (Normal Alkane):

984.4 (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: 50 C; End T: 270 C; Start time: 3 min; CAS no: 646071; Active phase: DB-Petro 100; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Lu, X.; Cai, J.; Kong, H.; Wu, M.; Hua, R.; Zhao, M.; Liu, J.; Xu, G., Analysis of cigarette smoke condensates by comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry. I. Acidic fraction, Anal. Chem., 75(17), 2003, 4441-4451.) NIST Spectra nist ri

935 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 646071; Active phase: SPB-5; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Begnaud, F.; Peres, C.; Berdague, J.-L., Characterization of volatile effluents of livestock buildings by solid-phase microextraction, Int. J. Environ. Anal. Chem., 83(10), 2003, 837-849.) 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; CAS no: 646071; Active phase: DB-5 MS; Carrier gas: Helium; Phase thickness: 1.0 um; Data type: Normal alkane RI; Authors: Luo, J.; Agnew, M.P., Gas characteristics before and after biofiltration treating odorous emissions from animal rendering processes, Environ. Technol., 22(9), 2001, 1091-1103.) NIST Spectra nist ri

1795 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 646071; Active phase: EC-1000; Data type: Normal alkane RI; Authors: Delabre, M.-L.; Bendall, J.F., Flavour ingredients from fermented dairy streams, Expression of Multidisciplinary Flavour Sci., , 9999, 375-378.) NIST Spectra nist ri

1774 (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: 646071; 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

1820 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 230 C; End time: 15 min; Start time: 2 min; CAS no: 646071; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Fan, W.; Qian, M.C., Characterization of Aroma Compounds of Chinese "Wuliangye" and "Jiannanchun" Liquors by Aroma Extract Dilution Analysis, J. Agric. Food Chem., 54, 2006, 2695-2704.) NIST Spectra nist ri

1824 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 230 C; End time: 15 min; Start time: 2 min; CAS no: 646071; Active phase: DB-Wax; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Fan, W.; Qian, M.C., Identification of aroma compounds in Chinese 'Yanghe Daqu' liquor by normal phase chromatography fractionation followed by gas chromatography/olfactometry, Flavour Fragr. J., 21, 2006, 333-342.) NIST Spectra nist ri

1809 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Description: 45C(5min) =>5C/min =>150C =>10C/min =>240C (10min); CAS no: 646071; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Krings, U.; Zelena, K.; Wu, S.; Berger, R.G., Thin-layer high-vacuum distillation to isolate volatile flavour compounds of cocoa powder, Eur. Food Res. Technol., 223, 2006, 675-681.) NIST Spectra nist ri

1813 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 230 C; End time: 25 min; Start time: 5 min; CAS no: 646071; Active phase: DB-Wax; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Dregus, M.; Engel, K.-H., Volatile constituents of uncooked Rhubarb (Rheum rhabarbarum L.) stalks, J. Agric. Food Chem., 51, 2003, 6530-6536.) NIST Spectra nist ri

1790.7 (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: 50 C; End T: 220 C; End time: 50 min; Start time: 3 min; CAS no: 646071; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Lu, X.; Cai, J.; Kong, H.; Wu, M.; Hua, R.; Zhao, M.; Liu, J.; Xu, G., Analysis of cigarette smoke condensates by comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry. I. Acidic fraction, Anal. Chem., 75(17), 2003, 4441-4451.) NIST Spectra nist ri

1803 (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: 646071; 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

1767.8 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.75 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 70 C; End T: 180 C; Start time: 4 min; CAS no: 646071; Active phase: Carbowax 20M; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Arnoldi, A.; Arnoldi, C.; Baldi, O.; Griffini, A., Flavor components in the Maillard reaction of different amino acids with fructose in cocoa butter-water. Qualitative and quantitative analysis of pyrazines, J. Agric. Food Chem., 36(5), 1988, 988-992.) NIST Spectra nist ri

Retention Index (Linear):

937 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: 35C(5min) =>10C/min =>45C (5min) =>5C/min => 250C (10min); CAS no: 646071; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Linear RI; Authors: Place, R.B.; Imhof, M.; Teuber, M.; Olivier Bosset, J., Distribution of the volatile (flavour) compounds in Raclette cheese produced with different staphylococci in the smear, Mitt. Lebensmittelunters. Hyg., 94, 2003, 192-211.) NIST Spectra nist ri

949 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Description: 5 0C (0.5 min) -> (1 min) 60 0C (5 min) ^ 4 0C/min -> 250 0C; CAS no: 646071; Active phase: DB-5; Carrier gas: He; Phase thickness: 1.0 um; Data type: Linear RI; Authors: Beal, A.D.; Mottram, D.S., Compounds contributing to the characteristic aroma of malted barley, J. Agric. Food Chem., 42(12), 1994, 2880-2884.) NIST Spectra nist ri

1800 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 45 C; End T: 250 C; End time: 12 min; Start time: 1 min; CAS no: 646071; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 1 um; Data type: Linear RI; Authors: Malliaa, S.; Fernandez-Garcia, E.; Bosset, J.O., Comparison of purge and trap and solid phase microextraction techniques for studying the volatile aroma compounds of three European PDO hard cheeses, Int. Dairy J., 15, 2005, 741-758.) NIST Spectra nist ri

1817 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Description: 20C (5min) => 2C/min =>70C => 4C/min => 210C; CAS no: 646071; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Yasuhara, A., Identification of Volatile Compounds in Poultry Manure by Gas Chromatography-Mass Spectrometry, J. Chromatogr., 387, 1987, 371-378.) NIST Spectra nist ri

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

Density:	0.9±0.1 g/cm³
Boiling Point:	201.0±0.0 °C at 760 mmHg
Vapour Pressure:	0.1±0.8 mmHg at 25°C
Enthalpy of Vaporization:	48.2±6.0 kJ/mol
Flash Point:	97.2±0.0 °C
Index of Refraction:	1.425
Molar Refractivity:	31.4±0.3 cm³
#H bond acceptors:	2
#H bond donors:	1
#Freely Rotating Bonds:	3
#Rule of 5 Violations:	0

ACD/LogP:	1.66
ACD/LogD (pH 5.5):	0.67
ACD/BCF (pH 5.5):	1.23
ACD/KOC (pH 5.5):	24.02
ACD/LogD (pH 7.4):	-1.12
ACD/BCF (pH 7.4):	1.00
ACD/KOC (pH 7.4):	1.00
Polar Surface Area:	37 Å²
Polarizability:	12.4±0.5 10^-24cm³
Surface Tension:	31.3±3.0 dyne/cm
Molar Volume:	122.6±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) =  1.98

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  195.80  (Adapted Stein & Brown method)
    Melting Pt (deg C):  15.24  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.352  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -33 deg C
    BP  (exp database):  200.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  5266
       log Kow used: 1.98 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  17781 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.70E-006  atm-m3/mole
   Group Method:   1.41E-006  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.022E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.98  (KowWin est)
  Log Kaw used:  -4.158  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.138
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7649
   Biowin2 (Non-Linear Model)     :   0.8810
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.3071  (days-weeks  )
   Biowin4 (Primary Survey Model) :   4.0657  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5967
   Biowin6 (MITI Non-Linear Model):   0.7512
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.7498
 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):  42.9 Pa (0.322 mm Hg)
  Log Koa (Koawin est  ): 6.138
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.99E-008 
       Octanol/air (Koa) model:  3.37E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.52E-006 
       Mackay model           :  5.59E-006 
       Octanol/air (Koa) model:  2.7E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   5.5154 E-12 cm3/molecule-sec
      Half-Life =     1.939 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    23.271 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.06E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  6.314
      Log Koc:  0.800 

 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: 1.98 (estimated)

 Volatilization from Water:
    Henry LC:  1.41E-006 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      448.6  hours   (18.69 days)
    Half-Life from Model Lake :       4985  hours   (207.7 days)

 Removal In Wastewater Treatment:
    Total removal:               2.31  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.13  percent
    Total to Air:                0.08  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       4.39            46.5         1000       
   Water     30.5            208          1000       
   Soil      65              416          1000       
   Sediment  0.0957          1.87e+003    0          
     Persistence Time: 286 hr

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Experimental Boiling Point:

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Experimental Density:

Appearance:

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Retention Index (Kovats):

Retention Index (Normal Alkane):

Retention Index (Linear):

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