ChemSpider 2D Image | 3250 | C8H10N2O

3250

  • Molecular FormulaC8H10N2O
  • Average mass150.178 Da
  • Monoisotopic mass150.079315 Da
  • ChemSpider ID55779

More details:






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

1-(3-Ethyl-2-pyrazinyl)ethanon [German] [ACD/IUPAC Name]
1-(3-Ethyl-2-pyrazinyl)ethanone
1-(3-Éthyl-2-pyrazinyl)éthanone [French] [ACD/IUPAC Name]
1-(3-Ethylpyrazin-2-yl)ethanone
251-316-2 [EINECS]
2-Acetyl-3-ethyl-1,4-diazine
2-Acetyl-3-ethylpyrazine
3250
32974-92-8 [RN]
More...

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

AQ03N14XTL [DBID]
CCRIS 4693 [DBID]
FEMA No. 3250 [DBID]
UNII:AQ03N14XTL [DBID]
UNII-AQ03N14XTL [DBID]
W325007_ALDRICH [DBID]
ZINC01850550 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      colourless to pale yellow liquid with a nutty, popcorn, potato chip, meaty odour Food and Agriculture Organization of the United Nations 2-Acetyl-3-ethylpyrazine
      Not Available Novochemy [NC-35954]
    • Safety:

      20/21/22 Novochemy [NC-35954]
      20/21/36/37/39 Novochemy [NC-35954]
      26-37 Alfa Aesar A15674
      36/37/38 Alfa Aesar A15674
      GHS07 Biosynth Q-100406
      GHS07; GHS09 Novochemy [NC-35954]
      H304; H332; H403 Novochemy [NC-35954]
      H315; H319; H335 Biosynth Q-100406
      H315-H319-H335 Alfa Aesar A15674
      P261; P280; P302+P352; P304+P340; P305+P351+P338; P312 Biosynth Q-100406
      P261-P280-P305+P351+P338-P304+P340-P405-P501a Alfa Aesar A15674
      P309+P311; P211; P242 Novochemy [NC-35954]
      R22 Novochemy [NC-35954]
      Warning Alfa Aesar A15674
      Warning Biosynth Q-100406
      Warning Novochemy [NC-35954]
      WARNING: Irritates lungs, eyes, skin Alfa Aesar A15674
  • Gas Chromatography
    • Retention Index (Kovats):

      1229 (estimated with error: 89) NIST Spectra mainlib_136051
    • Retention Index (Normal Alkane):

      1135 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.317 mm; Column length: 15 m; Column type: Capillary; Description: 50C(4min)=> 4C/min=>90C=> 10C/min=> 300C(10min); CAS no: 32974928; Active phase: OV-1; Carrier gas: He; Data type: Normal alkane RI; Authors: El-Shazly, A.M.; Hussein, K.T., Chemical analysis and biological activities of the essential oil of Teucrium leucocladum Boiss. (Lamiaceae), Biochem. Syst. Ecol., 32, 2004, 665-674.) NIST Spectra nist ri
      1138 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 80 C; End T: 200 C; CAS no: 32974928; Active phase: OV-101; Carrier gas: N2; Data type: Normal alkane RI; Authors: Mihara, S.; Enomoto, N., Calculation of retention indices of pyrazines on the basis of molecular structure, J. Chromatogr., 324, 1985, 428-430., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 80 C; End T: 200 C; CAS no: 32974928; Active phase: OV-101; Carrier gas: N2; Data type: Normal alkane RI; Authors: Mihara, S.; Masuda, H., Correlation between molecular structures and retention indices of pyrazines, J. Chromatogr., 402, 1987, 309-317.) NIST Spectra nist ri
      1148.7 (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: 32974928; 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
      1158 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.18 mm; Column length: 10 m; Column type: Capillary; CAS no: 32974928; Active phase: SLB-5MS; Carrier gas: Helium; Phase thickness: 0.18 um; Data type: Normal alkane RI; Authors: Risticevic, S.; Carasek, E.; Pawliszyn, J., Headspace solid-phase microextraction-gas chromatographic-time-of-flight mass spectrometric methodology for geographical origin verification of coffee, Anal. Chim. Acta, 617, 2008, 72-84.) NIST Spectra nist ri
      1172 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.18 mm; Column length: 10 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 40 C; End T: 295 C; Start time: 1.5 min; CAS no: 32974928; Active phase: SLB-5MS; Carrier gas: Helium; Phase thickness: 0.18 um; Data type: Normal alkane RI; Authors: Risticevic, S.; Carasek, E.; Pawliszyn, J., Headspace solid-phase microextraction-gas chromatographic-time-of-flight mass spectrometric methodology for geographical origin verification of coffee, Anal. Chim. Acta, 617, 2008, 72-84.) NIST Spectra nist ri
      1167 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50 C(1min)=> 20C/min => 80C => 25C/min => 250C (3 min); CAS no: 32974928; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Hartmann, P.J., The effect of wine matrix ingredients on 3-alkyl-2-methoxypyrazines measurements by headspace solid-phase microextraction (HS-SPME), Master's Thesis, Virginia Tech., Blacksburg, Va., 2003, 30.) NIST Spectra nist ri
      1170 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50 C(1min)=> 20C/min => 80C => 25C/min => 250C (3 min); CAS no: 32974928; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Hartmann, P.J., The effect of wine matrix ingredients on 3-alkyl-2-methoxypyrazines measurements by headspace solid-phase microextraction (HS-SPME), Master's Thesis, Virginia Tech., Blacksburg, Va., 2003, 30.) NIST Spectra nist ri
      1617 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 80 C; End T: 200 C; CAS no: 32974928; Active phase: Carbowax 20M; Carrier gas: N2; Data type: Normal alkane RI; Authors: Mihara, S.; Enomoto, N., Calculation of retention indices of pyrazines on the basis of molecular structure, J. Chromatogr., 324, 1985, 428-430.) NIST Spectra nist ri
    • Retention Index (Linear):

      1685 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 35C(8min) =>4C/min =>60C =>6C/min =>160C=>20C/min =>200C(1min); CAS no: 32974928; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Bianchi, F.; Careri, M.; Mangia, A.; Musci, M., Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness, J. Sep. Sci., 39, 2007, 563-572.) NIST Spectra nist ri

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

Density: 1.1±0.1 g/cm3
Boiling Point: 247.3±40.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.5 mmHg at 25°C
Enthalpy of Vaporization: 48.4±3.0 kJ/mol
Flash Point: 86.7±0.0 °C
Index of Refraction: 1.511
Molar Refractivity: 42.0±0.3 cm3
#H bond acceptors: 3
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.15
ACD/LogD (pH 5.5): 0.72
ACD/BCF (pH 5.5): 2.09
ACD/KOC (pH 5.5): 58.88
ACD/LogD (pH 7.4): 0.72
ACD/BCF (pH 7.4): 2.09
ACD/KOC (pH 7.4): 58.89
Polar Surface Area: 43 Å2
Polarizability: 16.7±0.5 10-24cm3
Surface Tension: 42.2±3.0 dyne/cm
Molar Volume: 140.2±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) =  0.66

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  245.73  (Adapted Stein & Brown method)
    Melting Pt (deg C):  57.04  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0167  (Modified Grain method)
    Subcooled liquid VP: 0.0331 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.072e+004
       log Kow used: 0.66 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2.6336e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.79E-009  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.593E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.66  (KowWin est)
  Log Kaw used:  -6.497  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.157
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7375
   Biowin2 (Non-Linear Model)     :   0.7311
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7700  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5403  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3447
   Biowin6 (MITI Non-Linear Model):   0.3054
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.0276
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  4.41 Pa (0.0331 mm Hg)
  Log Koa (Koawin est  ): 7.157
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.8E-007 
       Octanol/air (Koa) model:  3.52E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.46E-005 
       Mackay model           :  5.44E-005 
       Octanol/air (Koa) model:  0.000282 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   1.7243 E-12 cm3/molecule-sec
      Half-Life =     6.203 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    74.438 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 3.95E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  16
      Log Koc:  1.204 

 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: 0.66 (estimated)

 Volatilization from Water:
    Henry LC:  7.79E-009 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 9.211E+004  hours   (3838 days)
    Half-Life from Model Lake : 1.005E+006  hours   (4.187E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               1.87  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.77  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.175           149          1000       
   Water     37              360          1000       
   Soil      62.8            720          1000       
   Sediment  0.0705          3.24e+003    0          
     Persistence Time: 584 hr




                    

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