CAS Number: 31331-53-0
SMILES : CC(S)SC
CHEM   : 1-methylsulfanylethanethiol
MOL FOR: C3 H8 S2 
MOL WT : 108.22
------------------------------ 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) =  1.28
 
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
    Boiling Pt (deg C):  136.61  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -63.81  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.42  (Mean VP of Antoine & Grain methods)
    VP (Pa, 25 deg C) :  989  (Mean VP of Antoine & Grain methods)
 
 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  8892
       log Kow used: 1.28 (estimated)
       no-melting pt equation used
 
 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4226.7 mg/L
 
 ECOSAR Class Program (ECOSAR v1.00):
    Class(es) found:
       Thiols and Mercaptans
 
 Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
   Bond Method :   3.70E-005  atm-m3/mole  (3.75E+000 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:  1.188E-004 atm-m3/mole  (1.204E+001 Pa-m3/mole)
      VP:   7.42 mm Hg (source: MPBPVP)
      WS:   8.89E+003 mg/L (source: WSKOWWIN)
 
 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.28  (KowWin est)
  Log Kaw used:  -2.820  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.100
      Log Koa (experimental database):  None
 
 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6960
   Biowin2 (Non-Linear Model)     :   0.8134
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9600  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6916  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3403
   Biowin6 (MITI Non-Linear Model):   0.3409
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5111
 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):  912 Pa (6.84 mm Hg)
  Log Koa (Koawin est  ): 4.100
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.29E-009 
       Octanol/air (Koa) model:  3.09E-009 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.19E-007 
       Mackay model           :  2.63E-007 
       Octanol/air (Koa) model:  2.47E-007 
 
 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 153.4577 E-12 cm3/molecule-sec
      Half-Life =     0.070 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.836 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi):
      1.91E-007 (Junge-Pankow, Mackay avg)
      2.47E-007 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation
 
 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  60.7  L/kg (MCI method)
      Log Koc:  1.783       (MCI method)
      Koc    :  12.9  L/kg (Kow method)
      Log Koc:  1.111       (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 = 0.512 (BCF = 3.249 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -1.1221 days (HL = 0.0755 days)
   Log BCF Arnot-Gobas method (upper trophic) = 0.372 (BCF = 2.356)
   Log BAF Arnot-Gobas method (upper trophic) = 0.372 (BAF = 2.356)
       log Kow used: 1.28 (estimated)
 
 Volatilization from Water:
    Henry LC:  3.7E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      17.52  hours
    Half-Life from Model Lake :      278.4  hours   (11.6 days)
 
 Removal In Wastewater Treatment:
    Total removal:               3.86  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.80  percent
    Total to Air:                1.97  percent
      (using 10000 hr Bio P,A,S)
 
 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.243           1.67         1000       
   Water     29.4            360          1000       
   Soil      70.2            720          1000       
   Sediment  0.127           3.24e+003    0          
     Persistence Time: 389 hr