This page contains the EPI System Summary only.
For complete control of this information -
Download the free EPI SuiteTM v4.0 program : here
To Datasheet

CAS Number: 18707-60-3
SMILES : CC=CC(=O)OC
CHEM   : METHYL CROTONATE
MOL FOR: C5 H8 O2 
MOL WT : 100.12
------------------------------ 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) =  1.14
 
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
    Boiling Pt (deg C):  109.64  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -69.72  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  17.1  (Mean VP of Antoine & Grain methods)
    VP (Pa, 25 deg C) :  2.28E+003  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -42 deg C
    BP  (exp database):  118 deg C
 
 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.241e+004
       log Kow used: 1.14 (estimated)
       no-melting pt equation used
 
 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  28427 mg/L
 
 ECOSAR Class Program (ECOSAR v1.00):
    Class(es) found:
       Acrylates
 
 Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
   Bond Method :   1.45E-004  atm-m3/mole  (1.47E+001 Pa-m3/mole)
   Group Method:   4.55E-005  atm-m3/mole  (4.62E+000 Pa-m3/mole)
 For Henry LC Comparison Purposes:
   User-Entered Henry LC:  not entered
   Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
      HLC:  1.815E-004 atm-m3/mole  (1.839E+001 Pa-m3/mole)
      VP:   17.1 mm Hg (source: MPBPVP)
      WS:   1.24E+004 mg/L (source: WSKOWWIN)
 
 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.14  (KowWin est)
  Log Kaw used:  -2.227  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.367
      Log Koa (experimental database):  None
 
 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8741
   Biowin2 (Non-Linear Model)     :   0.9966
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1181  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9323  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7712
   Biowin6 (MITI Non-Linear Model):   0.8982
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.7017
 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):  2.13E+003 Pa (16 mm Hg)
  Log Koa (Koawin est  ): 3.367
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.41E-009 
       Octanol/air (Koa) model:  5.71E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.08E-008 
       Mackay model           :  1.12E-007 
       Octanol/air (Koa) model:  4.57E-008 
 
 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  20.0936 E-12 cm3/molecule-sec [Cis-isomer]
      OVERALL OH Rate Constant =  22.7536 E-12 cm3/molecule-sec [Trans-isomer]
      Half-Life =    6.388 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
      Half-Life =    5.641 Hrs (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.568750 E-17 cm3/molecule-sec [Cis-]
      OVERALL Ozone Rate Constant =     1.137500 E-17 cm3/molecule-sec [Trans-]
      Half-Life =     2.015 Days (at 7E11 mol/cm3) [Cis-isomer]
      Half-Life =     1.007 Days (at 7E11 mol/cm3) [Trans-isomer]
   Fraction sorbed to airborne particulates (phi):
      8.16E-008 (Junge-Pankow, Mackay avg)
      4.57E-008 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation
 
 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  10.65  L/kg (MCI method)
      Log Koc:  1.027       (MCI method)
      Koc    :  30.91  L/kg (Kow method)
      Log Koc:  1.490       (Kow method)
 
 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
  Total Kb for pH > 8 at 25 deg C :  9.354E-003  L/mol-sec
  Kb Half-Life at pH 8:       2.348  years  
  Kb Half-Life at pH 7:      23.480  years  
    (Total Kb applies only to esters, carbmates, alkyl halides)
 
 Bioaccumulation Estimates (BCFBAF v3.00):
   Log BCF from regression-based method = 0.419 (BCF = 2.626 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -1.5160 days (HL = 0.03048 days)
   Log BCF Arnot-Gobas method (upper trophic) = 0.219 (BCF = 1.657)
   Log BAF Arnot-Gobas method (upper trophic) = 0.219 (BAF = 1.657)
       log Kow used: 1.14 (estimated)
 
 Volatilization from Water:
    Henry LC:  4.55E-005 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:       13.9  hours
    Half-Life from Model Lake :      235.5  hours   (9.812 days)
 
 Removal In Wastewater Treatment:
    Total removal:               4.26  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.77  percent
    Total to Air:                2.39  percent
      (using 10000 hr Bio P,A,S)
 
 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.85            10.1         1000       
   Water     40.1            360          1000       
   Soil      58              720          1000       
   Sediment  0.0914          3.24e+003    0          
     Persistence Time: 314 hr