ChemSpider 2D Image | Methylacetoin | C5H10O2

Methylacetoin

  • Molecular FormulaC5H10O2
  • Average mass102.132 Da
  • Monoisotopic mass102.068077 Da
  • ChemSpider ID455157

More details:

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

2-Hydroxy-3-pentanon [German] [ACD/IUPAC Name]
2-Hydroxy-3-pentanone [ACD/IUPAC Name]
2-Hydroxy-3-pentanone [French] [ACD/IUPAC Name]
2-hydroxypentan-3-one
3-Pentanone, 2-hydroxy- [ACD/Index Name]
Methylacetoin
2-hydroxy-pentan-3-one
3-Pentanon-2-ol
5704-20-1 [RN]
hydroxypentanone,2-hydroxy-3-pentanone
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

  • Gas Chromatography

    • Retention Index (Kovats):

      817 (estimated with error: 89) NIST Spectra mainlib_90642

    • Retention Index (Normal Alkane):

      777 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 35 0C (2 min) ^ 1 0C/min -> 90 0C ^ 3 0C/min -> 220 0C; CAS no: 5704201; Active phase: SPB-1; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Borse, B.B.; Rao, L.J.M.; Ramalaksmi, K.; Raghavan, B., Chemical composition of volatiles from coconut sap (neera) end effect of processing, Food Chem., 101, 2007, 877-880.) NIST Spectra nist ri
      810 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.03 in; Column length: 1000 ft; Column type: Capillary; Heat rate: 4 K/min; Start T: 80 C; End T: 225 C; Start time: 5 min; CAS no: 5704201; Active phase: SF-96; Data type: Normal alkane RI; Authors: Mussinan, C.J.; Walradt, J.P., Volatile constituents of pressure cooked pork liver, J. Agric. Food Chem., 22(5), 1974, 827-831.) NIST Spectra nist ri
      1351 (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: 35 C; End T: 320 C; End time: 45 min; Start time: 5 min; CAS no: 5704201; Active phase: FFAP; Carrier gas: N2; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Nebesny, E.; Budryn, G.; Kula, J.; Majda, T., The effect of roasting method on headspace composition of robusta coffee bean aroma, Eur. Food Res. Technol., 225, 2007, 9-19.) NIST Spectra nist ri
      1368 (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: 5704201; 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
      1370 (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; Start time: 8 min; CAS no: 5704201; Active phase: TC-Wax; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Ishikawa, M.; Ito, O.; Ishizaki, S.; Kurobayashi, Y.; Fujita, A., Solid-phase aroma concentrate extraction (SPACE ): a new headspace technique for more sensitive analysis of volatiles, Flavour Fragr. J., 19, 2004, 183-187.) NIST Spectra nist ri
      1366 (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: 190 C; Start time: 6 min; CAS no: 5704201; Active phase: HP-Wax; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Sanz, C.; Ansorena, D.; Bello, J.; Cid, C., Optimizing headspace temperature and time sampling for identification of volatile compounds in ground roasted Arabica coffee, J. Agric. Food Chem., 49, 2001, 1364-1369.) NIST Spectra nist ri

    • Retention Index (Linear):

      787 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 220 C; End time: 10 min; CAS no: 5704201; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Zhang, Y.; Ho, C.-T., Comparison of the volatile compounds formed from the thermal reaction of glucose with cysteine and glutathione, J. Agric. Food Chem., 39, 1991, 760-763.) NIST Spectra nist ri
      821 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 0C(5min) => 40C/min =>40C (2min) => 4C/min =>280C; CAS no: 5704201; Active phase: CP-Sil 8CB-MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., The effects of diet and breed on the volatile compounds of cooked lamb, Meat Sci., 55, 2000, 149-159.) NIST Spectra nist ri
      1361 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 220 C; End time: 5 min; Start time: 5 min; CAS no: 5704201; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Kurniadi, T.; Rhlid, R.B.; Fay, L.-B.; Juillerat, M.-A.; Berger, R.G., Chemoenzymatic synthesis of aroma active 5,6-dihydro- and tetrahydropyrazines from aliphatic acyloins produced by Baker's yeast, J. Agric. Food Chem., 51, 2003, 3103-3107.) NIST Spectra nist ri
      1386 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 30C(8min) => 4C/min =>60C =>6C/min => 160C => 20C/min =>200C(1min); CAS no: 5704201; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Radovic, B.S.; Careri, M.; Mangia, A.; Musci, M.; Gerboles, M.; Anklam, E., Analytical, nutritional, and clinical methods section. Contribution of dynamic headspace GC-MS analysis of aroma compounds to authenticity testing of honey, Food Chem., 72, 2001, 511-520.) NIST Spectra nist ri
      1355 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 240 C; Start time: 2 min; CAS no: 5704201; Active phase: DB-FFAP; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Charles, M.; Martin, B.; Ginies, C.; Etievant, P.; Coste, G.; Guichard, E., Potent aroma compounds of two red wine vinegars, J. Agric. Food Chem., 48, 2000, 70-77.) NIST Spectra nist ri
      1396 (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: 20 C; End T: 200 C; End time: 1 min; Start time: 1 min; CAS no: 5704201; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Ott, A.; Fay, L.B.; Chaintreau, A., Determination and origin of the aroma impact compounds of yogurt flavor, J. Agric. Food Chem., 45, 1997, 850-858.) 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: 153.0±8.0 °C at 760 mmHg
Vapour Pressure: 1.3±0.6 mmHg at 25°C
Enthalpy of Vaporization: 45.4±6.0 kJ/mol
Flash Point: 53.8±11.0 °C
Index of Refraction: 1.418
Molar Refractivity: 26.7±0.3 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 0.10
ACD/LogD (pH 5.5): 0.14
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 28.52
ACD/LogD (pH 7.4): 0.14
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 28.52
Polar Surface Area: 37 Å2
Polarizability: 10.6±0.5 10-24cm3
Surface Tension: 31.0±3.0 dyne/cm
Molar Volume: 106.1±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) =  0.13

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  159.69  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -25.86  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.782  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.907e+005
       log Kow used: 0.13 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  81898 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.36E-005  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.615E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.13  (KowWin est)
  Log Kaw used:  -3.255  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.385
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8645
   Biowin2 (Non-Linear Model)     :   0.9023
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1110  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8076  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6867
   Biowin6 (MITI Non-Linear Model):   0.8561
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.2780
 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):  93.1 Pa (0.698 mm Hg)
  Log Koa (Koawin est  ): 3.385
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.22E-008 
       Octanol/air (Koa) model:  5.96E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.16E-006 
       Mackay model           :  2.58E-006 
       Octanol/air (Koa) model:  4.77E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   6.9938 E-12 cm3/molecule-sec
      Half-Life =     1.529 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    18.352 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.87E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1
      Log Koc:  0.000 

 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: 0.13 (estimated)

 Volatilization from Water:
    Henry LC:  1.36E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      44.54  hours   (1.856 days)
    Half-Life from Model Lake :      570.6  hours   (23.78 days)

 Removal In Wastewater Treatment:
    Total removal:               2.59  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.75  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       4.2             36.7         1000       
   Water     46.7            360          1000       
   Soil      49              720          1000       
   Sediment  0.0866          3.24e+003    0          
     Persistence Time: 328 hr

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