Mesalazine

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) =  0.98

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  346.34  (Adapted Stein & Brown method)
    Melting Pt (deg C):  128.86  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  6.1E-008  (Modified Grain method)
    MP  (exp database):  283 deg C
    Subcooled liquid VP: 4.37E-005 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):  1.077e+004
       log Kow used: 0.98 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  888.84 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Aromatic Amines-acid
       Phenols-acid
       Salicylic Acid-acid

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   5.02E-012  atm-m3/mole
   Group Method:   2.28E-015  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.141E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.98  (KowWin est)
  Log Kaw used:  -9.688  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  10.668
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7336
   Biowin2 (Non-Linear Model)     :   0.9053
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8701  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5659  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5647
   Biowin6 (MITI Non-Linear Model):   0.5429
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6183
 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):  0.00583 Pa (4.37E-005 mm Hg)
  Log Koa (Koawin est  ): 10.668
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000515 
       Octanol/air (Koa) model:  0.0114 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0183 
       Mackay model           :  0.0396 
       Octanol/air (Koa) model:  0.478 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  20.8772 E-12 cm3/molecule-sec
      Half-Life =     0.512 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     6.148 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.0289 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  10
      Log Koc:  1.000 

 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 = 0.500 (BCF = 3.162)
       log Kow used: 0.98 (estimated)

 Volatilization from Water:
    Henry LC:  5.02E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.443E+008  hours   (6.014E+006 days)
    Half-Life from Model Lake : 1.575E+009  hours   (6.56E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               1.88  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.79  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.000269        12.3         1000       
   Water     34.7            360          1000       
   Soil      65.2            720          1000       
   Sediment  0.0693          3.24e+003    0          
     Persistence Time: 608 hr