Tretinoin

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  7.85
    Log Kow (Exper. database match) =  6.30
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  411.79  (Adapted Stein & Brown method)
    Melting Pt (deg C):  147.95  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.02E-007  (Modified Grain method)
    MP  (exp database):  181 deg C
    Subcooled liquid VP: 4.29E-006 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  0.1263
       log Kow used: 6.30 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.23409 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics-acid

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   9.50E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.193E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  6.30  (exp database)
  Log Kaw used:  -3.411  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.711
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.4933
   Biowin2 (Non-Linear Model)     :   0.0880
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6877  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.6464  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1655
   Biowin6 (MITI Non-Linear Model):   0.0257
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.5104
 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):  0.000572 Pa (4.29E-006 mm Hg)
  Log Koa (Koawin est  ): 9.711
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.00524 
       Octanol/air (Koa) model:  0.00126 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.159 
       Mackay model           :  0.296 
       Octanol/air (Koa) model:  0.0917 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 292.5375 E-12 cm3/molecule-sec
      Half-Life =     0.037 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    26.325 Min
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    24.180000 E-17 cm3/molecule-sec
      Half-Life =     0.047 Days (at 7E11 mol/cm3)
      Half-Life =      1.137 Hrs
   Fraction sorbed to airborne particulates (phi): 0.227 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  9987
      Log Koc:  3.999 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 1.750 (BCF = 56.23)
       log Kow used: 6.30 (expkow database)

 Volatilization from Water:
    Henry LC:  9.5E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      108.6  hours   (4.525 days)
    Half-Life from Model Lake :       1330  hours   (55.42 days)

 Removal In Wastewater Treatment:
    Total removal:              93.09  percent
    Total biodegradation:        0.77  percent
    Total sludge adsorption:    92.31  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       0.0088          0.495        1000       
   Water     3.08            900          1000       
   Soil      32.3            1.8e+003     1000       
   Sediment  64.6            8.1e+003     0          
     Persistence Time: 2.7e+003 hr