2-Butyl-3-methylpyrazine

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

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.51
    Log Kow (Exper. database match) =  2.10
       Exper. Ref:  Yamagami,C et al. (1991)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  228.44  (Adapted Stein & Brown method)
    Melting Pt (deg C):  39.80  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0586  (Modified Grain method)
    Subcooled liquid VP: 0.0798 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):  1218
       log Kow used: 2.10 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2219.5 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.32E-006  atm-m3/mole
   Group Method:   3.97E-008  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  9.510E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.10  (exp database)
  Log Kaw used:  -3.468  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.568
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8938
   Biowin2 (Non-Linear Model)     :   0.9796
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0158  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7630  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3667
   Biowin6 (MITI Non-Linear Model):   0.3752
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.1937
 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):  10.6 Pa (0.0798 mm Hg)
  Log Koa (Koawin est  ): 5.568
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  2.82E-007 
       Octanol/air (Koa) model:  9.08E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.02E-005 
       Mackay model           :  2.26E-005 
       Octanol/air (Koa) model:  7.26E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   4.7455 E-12 cm3/molecule-sec
      Half-Life =     2.254 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    27.047 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.64E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  315.7
      Log Koc:  2.499 

 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 = 0.917 (BCF = 8.26)
       log Kow used: 2.10 (expkow database)

 Volatilization from Water:
    Henry LC:  8.32E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:       87.5  hours   (3.646 days)
    Half-Life from Model Lake :       1057  hours   (44.06 days)

 Removal In Wastewater Treatment:
    Total removal:               2.80  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.24  percent
    Total to Air:                0.46  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       3.53            54.1         1000       
   Water     29.9            360          1000       
   Soil      66.5            720          1000       
   Sediment  0.118           3.24e+003    0          
     Persistence Time: 431 hr