ChemSpider 2D Image | 2,3-Dimethyl-5-Isobutylpyrazine | C10H16N2

2,3-Dimethyl-5-Isobutylpyrazine

  • Molecular FormulaC10H16N2
  • Average mass164.247 Da
  • Monoisotopic mass164.131348 Da
  • ChemSpider ID460257

More details:

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

2,3-dimethyl-5-(2-methylpropyl)pyrazine
2,3-Dimethyl-5-Isobutylpyrazine
54410-83-2 [RN]
5-Isobutyl-2,3-dimethylpyrazin [German] [ACD/IUPAC Name]
5-ISOBUTYL-2,3-DIMETHYLPYRAZINE [ACD/IUPAC Name]
5-Isobutyl-2,3-diméthylpyrazine [French] [ACD/IUPAC Name]
MFCD06200839 [MDL number]
Pyrazine, 2,3-dimethyl-5-(2-methylpropyl)- [ACD/Index Name]
[54410-83-2] [RN]
15834-78-3 [RN]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

CCRIS 4693 [DBID]
  • Gas Chromatography

    • Retention Index (Kovats):

      1242 (estimated with error: 83) NIST Spectra mainlib_6059, replib_109598

    • Retention Index (Normal Alkane):

      1180.8 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 70 C; End T: 250 C; CAS no: 54410832; Active phase: Methyl Silicone; Carrier gas: He; Data type: Normal alkane RI; Authors: Samsudin, M.W.; Rongtao, S.; Said, I.M., Volatile compounds produced by the reaction of leucine and valine with glucose in propylene glycol, J. Agric. Food Chem., 44, 1996, 247-250.) NIST Spectra nist ri
      1200 (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: 54410832; 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
      1558 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.28 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 240 C; Start time: 5 min; CAS no: 54410832; Active phase: FFAP; Carrier gas: He; Data type: Normal alkane RI; Authors: Vernin, G.; Metzger, J.; Obretenov, T.; Suon, K.-N.; Fraisse, D., GC/MS (EI,PCI,SIM)-data bank analysis of volatile compounds arising from thermal degradation of glucose-valine amadori intermediates, in Flavors and Fragrances: A World Perspective. Proceedings of the 10th International Congress of Essential Oils, Fragrances and Flavors, Lawrence,B.M.; Mookherjee,B.D.; Willis,B.J., ed(s), Elsevier, New York, 1988, 999-1028.) NIST Spectra nist ri
      1525 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 54410832; 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

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

Density: 0.9±0.1 g/cm3
Boiling Point: 225.3±35.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.3±3.0 kJ/mol
Flash Point: 84.2±17.6 °C
Index of Refraction: 1.494
Molar Refractivity: 50.9±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 2.51
ACD/LogD (pH 5.5): 2.18
ACD/BCF (pH 5.5): 26.89
ACD/KOC (pH 5.5): 367.10
ACD/LogD (pH 7.4): 2.18
ACD/BCF (pH 7.4): 26.93
ACD/KOC (pH 7.4): 367.59
Polar Surface Area: 26 Å2
Polarizability: 20.2±0.5 10-24cm3
Surface Tension: 34.9±3.0 dyne/cm
Molar Volume: 174.6±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) =  2.98

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  235.74  (Adapted Stein & Brown method)
    Melting Pt (deg C):  45.20  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0361  (Modified Grain method)
    Subcooled liquid VP: 0.0551 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):  185.9
       log Kow used: 2.98 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1213.2 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   9.18E-006  atm-m3/mole
   Group Method:   6.58E-008  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  4.197E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.98  (KowWin est)
  Log Kaw used:  -3.426  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.406
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8334
   Biowin2 (Non-Linear Model)     :   0.9174
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6116  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.4052  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2091
   Biowin6 (MITI Non-Linear Model):   0.1588
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4497
 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):  7.35 Pa (0.0551 mm Hg)
  Log Koa (Koawin est  ): 6.406
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  4.08E-007 
       Octanol/air (Koa) model:  6.25E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.47E-005 
       Mackay model           :  3.27E-005 
       Octanol/air (Koa) model:  5E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   5.9706 E-12 cm3/molecule-sec
      Half-Life =     1.791 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    21.497 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 2.37E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  428.5
      Log Koc:  2.632 

 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 = 1.596 (BCF = 39.45)
       log Kow used: 2.98 (estimated)

 Volatilization from Water:
    Henry LC:  9.18E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      83.05  hours   (3.46 days)
    Half-Life from Model Lake :       1013  hours   (42.23 days)

 Removal In Wastewater Treatment:
    Total removal:               6.00  percent
    Total biodegradation:        0.12  percent
    Total sludge adsorption:     5.39  percent
    Total to Air:                0.49  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.31            43           1000       
   Water     19.1            900          1000       
   Soil      79.2            1.8e+003     1000       
   Sediment  0.416           8.1e+003     0          
     Persistence Time: 1.01e+003 hr

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