CAS Number: 594-61-6
SMILES : O=C(O)C(O)(C)C
CHEM   : Propanoic acid, 2-hydroxy-2-methyl-
MOL FOR: C4 H8 O3 
MOL WT : 104.11
------------------------------ EPI SUMMARY (v4.10) --------------------------
 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 v1.68 estimate) =  -0.20
    Log Kow (Exper. database match) =  -0.36
       Exper. Ref:  HANSCH,C ET AL. (1995)
 
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
    Boiling Pt (deg C):  206.88  (Adapted Stein & Brown method)
    Melting Pt (deg C):  33.26  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00911  (Modified Grain method)
    VP (Pa, 25 deg C) :  1.21  (Modified Grain method)
    MP  (exp database):  82.5 deg C
    BP  (exp database):  212 deg C
    VP  (exp database):  8.75E-03 mm Hg (1.17E+000 Pa) at 25 deg C
    Subcooled liquid VP: 0.0324 mm Hg (25 deg C, exp database VP )
                       : 4.32 Pa  (25 deg C, exp database VP )
 
 Water Solubility Estimate from Log Kow (WSKOW v1.42):
    Water Solubility at 25 deg C (mg/L):  1e+006
       log Kow used: -0.36 (expkow database)
       no-melting pt equation used
 
 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L
 
 ECOSAR Class Program (ECOSAR v1.00):
    Class(es) found:
       Neutral Organics-acid
 
 Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
   Bond Method :   1.51E-007  atm-m3/mole  (1.53E-002 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:  1.248E-009 atm-m3/mole  (1.264E-004 Pa-m3/mole)
      VP:   0.00911 mm Hg (source: MPBPVP)
      WS:   1E+006 mg/L (source: WSKOWWIN)
 
 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.36  (exp database)
  Log Kaw used:  -5.209  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.849
      Log Koa (experimental database):  None
 
 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5867
   Biowin2 (Non-Linear Model)     :   0.6107
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1216  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9297  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6520
   Biowin6 (MITI Non-Linear Model):   0.7489
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5295
 Ready Biodegradability Prediction:   YES
 
Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!
 
 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  4.32 Pa (0.0324 mm Hg)
  Log Koa (Koawin est  ): 4.849
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.94E-007 
       Octanol/air (Koa) model:  1.73E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.51E-005 
       Mackay model           :  5.56E-005 
       Octanol/air (Koa) model:  1.39E-006 
 
 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   1.6936 E-12 cm3/molecule-sec
      Half-Life =     6.316 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    75.786 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi):
      4.03E-005 (Junge-Pankow, Mackay avg)
      1.39E-006 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation
 
 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  1  L/kg (MCI method)
      Log Koc:  0.000       (MCI method)
      Koc    :  0.3509  L/kg (Kow method)
      Log Koc:  -0.455      (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 v3.01):
   Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -1.3426 days (HL = 0.04544 days)
   Log BCF Arnot-Gobas method (upper trophic) = -0.035 (BCF = 0.9231)
   Log BAF Arnot-Gobas method (upper trophic) = -0.035 (BAF = 0.9231)
       log Kow used: -0.36 (expkow database)
 
 Volatilization from Water:
    Henry LC:  1.51E-007 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:       3957  hours   (164.9 days)
    Half-Life from Model Lake : 4.326E+004  hours   (1802 days)
 
 Removal In Wastewater Treatment:
    Total removal:               1.86  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  percent
    Total to Air:                0.01  percent
      (using 10000 hr Bio P,A,S)
 
 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.35            152          1000       
   Water     40.4            360          1000       
   Soil      57.2            720          1000       
   Sediment  0.0756          3.24e+003    0          
     Persistence Time: 482 hr