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Search term: 76857 (Found by CSID)
ChemSpider 2D Image | 2-Methyl-3-propylpyrazine | C8H12N2

2-Methyl-3-propylpyrazine

  • Molecular FormulaC8H12N2
  • Average mass136.194 Da
  • Monoisotopic mass136.100052 Da
  • ChemSpider ID76857

More details:

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

15986-80-8 [RN]
240-121-8 [EINECS]
2-Methyl-3-n-Propylpyrazine
2-Methyl-3-propylpyrazin [German] [ACD/IUPAC Name]
2-Methyl-3-propylpyrazine [ACD/IUPAC Name]
2-Méthyl-3-propylpyrazine [French] [ACD/IUPAC Name]
3-Propyl-2-methylpyrazine
Pyrazine, 2-methyl-3-propyl- [ACD/Index Name]
[15986-80-8] [RN]
2-METHYL-3-N-PROPYL PYRAZINE
More...

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

ZINC00409241 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous

    • Safety:

      26-37 Alfa Aesar B22013
      36/37/38 Alfa Aesar B22013
      CAUTION: May irritate eyes, skin, and respiratory tract Alfa Aesar B22013
      H315-H319-H335 Alfa Aesar B22013
      P261-P280-P305+P351+P338-P304+P340-P405-P501a Alfa Aesar B22013
      Warning Alfa Aesar B22013
      WARNING: Irritates lungs, eyes, skin Alfa Aesar B22013
  • Gas Chromatography

    • Retention Index (Kovats):

      1093 (estimated with error: 83) NIST Spectra mainlib_343191, replib_249017, replib_236577

    • Retention Index (Normal Alkane):

      1074 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 15986808; 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
      1072 (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: 15986808; 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., 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: 15986808; Active phase: OV-101; Data type: Normal alkane RI; Authors: Mihara, S.; Masuda, H., Structure-odor relationships for disubstituted pyrazines, J. Agric. Food Chem., 36(6), 1988, 1242-1247.) NIST Spectra nist ri
      1479 (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: 15986808; 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
      1478 (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: 15986808; 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
      1462 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 15986808; 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
      1489 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 1.5 K/min; Start T: 50 C; End T: 210 C; End time: 10 min; Start time: 5 min; CAS no: 15986808; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Chyau, C.-C.; Lin, Y.-C.; Mau, J.-L., Storage stability of deep-fried shallot flavoring, J. Agric. Food Chem., 45, 1997, 3211-3215.) NIST Spectra nist ri
      1438 (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: 15986808; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Mihara, S.; Masuda, H., Structure-odor relationships for disubstituted pyrazines, J. Agric. Food Chem., 36(6), 1988, 1242-1247., Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 15986808; Active phase: Carbowax 20M; 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

    • Retention Index (Linear):

      1065 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 35C(10min)=>2C/min=>280C; Heat rate: 2 K/min; Start T: 35 C; End T: 280 C; End time: 10 min; Start time: 10 min; CAS no: 15986808; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Specht, K.; Baltes, W., Identification of volatile flavor compounds with high aroma values from shallow-fried beef, J. Agric. Food Chem., 42, 1994, 2246-2253.) 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: 189.3±0.0 °C at 760 mmHg
Vapour Pressure: 0.8±0.3 mmHg at 25°C
Enthalpy of Vaporization: 40.8±3.0 kJ/mol
Flash Point: 68.9±0.0 °C
Index of Refraction: 1.498
Molar Refractivity: 41.4±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.70
ACD/LogD (pH 5.5): 1.62
ACD/BCF (pH 5.5): 9.96
ACD/KOC (pH 5.5): 180.30
ACD/LogD (pH 7.4): 1.62
ACD/BCF (pH 7.4): 9.96
ACD/KOC (pH 7.4): 180.39
Polar Surface Area: 26 Å2
Polarizability: 16.4±0.5 10-24cm3
Surface Tension: 37.3±3.0 dyne/cm
Molar Volume: 141.5±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) =  2.02
    Log Kow (Exper. database match) =  1.57
       Exper. Ref:  Yamagami,C et al. (1991)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  209.41  (Adapted Stein & Brown method)
    Melting Pt (deg C):  28.65  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.526  (Modified Grain method)
    BP  (exp database):  189 deg C
    Subcooled liquid VP: 0.566 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):  3962
       log Kow used: 1.57 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  6929.6 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   6.26E-006  atm-m3/mole
   Group Method:   2.81E-008  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.379E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.57  (exp database)
  Log Kaw used:  -3.592  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.162
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7920
   Biowin2 (Non-Linear Model)     :   0.9028
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7485  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5142  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3590
   Biowin6 (MITI Non-Linear Model):   0.3695
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0981
 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):  75.5 Pa (0.566 mm Hg)
  Log Koa (Koawin est  ): 5.162
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.98E-008 
       Octanol/air (Koa) model:  3.56E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.44E-006 
       Mackay model           :  3.18E-006 
       Octanol/air (Koa) model:  2.85E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.3324 E-12 cm3/molecule-sec
      Half-Life =     3.210 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    38.516 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 2.31E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  171.1
      Log Koc:  2.233 

 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 = 0.509 (BCF = 3.228)
       log Kow used: 1.57 (expkow database)

 Volatilization from Water:
    Henry LC:  6.26E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      110.3  hours   (4.598 days)
    Half-Life from Model Lake :       1302  hours   (54.23 days)

 Removal In Wastewater Treatment:
    Total removal:               2.34  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.90  percent
    Total to Air:                0.35  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.91            77           1000       
   Water     39.4            900          1000       
   Soil      57.6            1.8e+003     1000       
   Sediment  0.104           8.1e+003     0          
     Persistence Time: 679 hr

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