CAS Number: 5788-49-8
SMILES : CC1=CN=C(C(=S)N1)C
CHEM   : 3,6-dimethyl-1H-pyrazine-2-thione
MOL FOR: C6 H8 N2 S1 
MOL WT : 140.20
------------------------------ EPI SUMMARY (v4.00) --------------------------
 Physical Property Inputs:
    Log Kow (octanol-water):   ------
    Boiling Point (deg C)  :   ------
    Melting Point (deg C)  :   ------
    Vapor Pressure (mm Hg) :   ------
    Water Solubility (mg/L):   ------
    Henry LC (atm-m3/mole) :   ------
 
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  1.38
 
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
    Boiling Pt (deg C):  298.47  (Adapted Stein & Brown method)
    Melting Pt (deg C):  90.77  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000492  (Modified Grain method)
    VP (Pa, 25 deg C) :  0.0655  (Modified Grain method)
    Subcooled liquid VP: 0.00212 mm Hg (25 deg C, Mod-Grain method)
                       : 0.282 Pa (25 deg C, Mod-Grain method)
 
 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  5585
       log Kow used: 1.38 (estimated)
       no-melting pt equation used
 
 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3526.1 mg/L
 
 ECOSAR Class Program (ECOSAR v1.00):
    Class(es) found:
       Vinyl/Allyl Amines
 
 Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
   Bond Method :   2.36E-006  atm-m3/mole  (2.39E-001 Pa-m3/mole)
   Group Method:   Incomplete
 For Henry LC Comparison Purposes:
   User-Entered Henry LC:  not entered
   Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
      HLC:  1.625E-008 atm-m3/mole  (1.647E-003 Pa-m3/mole)
      VP:   0.000492 mm Hg (source: MPBPVP)
      WS:   5.59E+003 mg/L (source: WSKOWWIN)
 
 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.38  (KowWin est)
  Log Kaw used:  -4.016  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.396
      Log Koa (experimental database):  None
 
 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8909
   Biowin2 (Non-Linear Model)     :   0.9761
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8351  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8509  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4287
   Biowin6 (MITI Non-Linear Model):   0.3616
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0355
 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):  0.283 Pa (0.00212 mm Hg)
  Log Koa (Koawin est  ): 5.396
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.06E-005 
       Octanol/air (Koa) model:  6.11E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000383 
       Mackay model           :  0.000848 
       Octanol/air (Koa) model:  4.89E-006 
 
 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  94.5873 E-12 cm3/molecule-sec
      Half-Life =     0.113 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.357 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.137500 E-17 cm3/molecule-sec
      Half-Life =     1.007 Days (at 7E11 mol/cm3)
      Half-Life =     24.179 Hrs
   Fraction sorbed to airborne particulates (phi):
      0.000616 (Junge-Pankow, Mackay avg)
      4.89E-006 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation
 
 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  101.3  L/kg (MCI method)
      Log Koc:  2.006       (MCI method)
      Koc    :  92.7  L/kg (Kow method)
      Log Koc:  1.967       (Kow method)
 
 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
    Rate constants can NOT be estimated for this structure!
 
 Bioaccumulation Estimates (BCFBAF v3.00):
   Log BCF from regression-based method = 0.575 (BCF = 3.757 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -1.4799 days (HL = 0.03312 days)
   Log BCF Arnot-Gobas method (upper trophic) = 0.344 (BCF = 2.207)
   Log BAF Arnot-Gobas method (upper trophic) = 0.344 (BAF = 2.207)
       log Kow used: 1.38 (estimated)
 
 Volatilization from Water:
    Henry LC:  2.36E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:        295  hours   (12.29 days)
    Half-Life from Model Lake :       3317  hours   (138.2 days)
 
 Removal In Wastewater Treatment:
    Total removal:               2.07  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.85  percent
    Total to Air:                0.13  percent
      (using 10000 hr Bio P,A,S)
 
 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.266           2.44         1000       
   Water     28.2            360          1000       
   Soil      71.4            720          1000       
   Sediment  0.166           3.24e+003    0          
     Persistence Time: 436 hr