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 Num: 054947-74-9
SMILES : O=C(O)CCC(CCCC)C
CHEM   : Octanoic acid, 4-methyl-
MOL FOR: C9 H18 O2 
MOL WT : 158.24
------------------------------ EPI SUMMARY (v4.00) --------------------------
 Physical Property Inputs:
    Water Solubility (mg/L):   ------
    Vapor Pressure (mm Hg) :   ------
    Henry LC (atm-m3/mole) :   ------
    Log Kow (octanol-water):   ------
    Boiling Point (deg C)  :   ------
    Melting Point (deg C)  :   ------

 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.45

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
    Boiling Pt (deg C):  252.04  (Adapted Stein & Brown method)
    Melting Pt (deg C):  48.57  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0146  (Modified Grain method)
    VP (Pa, 25 deg C) :  1.94  (Modified Grain method)
    Subcooled liquid VP: 0.024 mm Hg (25 deg C, Mod-Grain method)
                       : 3.19 Pa (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  195.5
       log Kow used: 3.45 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  593.15 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 :   3.98E-006  atm-m3/mole  (4.03E-001 Pa-m3/mole)
   Group Method:   3.97E-006  atm-m3/mole  (4.02E-001 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:  1.555E-005 atm-m3/mole  (1.576E+000 Pa-m3/mole)
      VP:   0.0146 mm Hg (source: MPBPVP)
      WS:   196 mg/L (source: WSKOWWIN)

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.45  (KowWin est)
  Log Kaw used:  -3.789  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.239
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8533
   Biowin2 (Non-Linear Model)     :   0.9626
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.5124  (days-weeks  )
   Biowin4 (Primary Survey Model) :   4.2741  (hours-days  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6198
   Biowin6 (MITI Non-Linear Model):   0.7647
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5101
 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):  3.2 Pa (0.024 mm Hg)
  Log Koa (Koawin est  ): 7.239
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  9.37E-007 
       Octanol/air (Koa) model:  4.26E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  3.39E-005 
       Mackay model           :  7.5E-005 
       Octanol/air (Koa) model:  0.00034 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  10.0392 E-12 cm3/molecule-sec
      Half-Life =     1.065 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    12.785 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi):
      5.44E-005 (Junge-Pankow, Mackay avg)
      0.00034 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  46.44  L/kg (MCI method)
      Log Koc:  1.667       (MCI method)
      Koc    :  115.9  L/kg (Kow method)
      Log Koc:  2.064       (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 = 0.500 (BCF = 3.162 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -0.0479 days (HL = 0.8956 days)
   Log BCF Arnot-Gobas method (upper trophic) = 2.221 (BCF = 166.3)
   Log BAF Arnot-Gobas method (upper trophic) = 2.221 (BAF = 166.3)
       log Kow used: 3.45 (estimated)

 Volatilization from Water:
    Henry LC:  3.97E-006 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      186.8  hours   (7.783 days)
    Half-Life from Model Lake :       2143  hours   (89.3 days)

 Removal In Wastewater Treatment:
    Total removal:              12.13  percent
    Total biodegradation:        0.17  percent
    Total sludge adsorption:    11.76  percent
    Total to Air:                0.20  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       3.29            25.6         1000       
   Water     31              208          1000       
   Soil      65.6            416          1000       
   Sediment  0.105           1.87e+003    0          
     Persistence Time: 273 hr