1-[(6R)-2-Amino-4-oxo-1,4,5,6,7,8-hexahydro-6-pteridinyl]-1,2-propanedione

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) =  -4.72

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  525.33  (Adapted Stein & Brown method)
    Melting Pt (deg C):  224.43  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  4.56E-011  (Modified Grain method)
    Subcooled liquid VP: 6.24E-009 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):  1e+006
       log Kow used: -4.72 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Aliphatic Amines

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.02E-021  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.423E-017 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -4.72  (KowWin est)
  Log Kaw used:  -19.083  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.363
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9423
   Biowin2 (Non-Linear Model)     :   0.8653
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7238  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5920  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1056
   Biowin6 (MITI Non-Linear Model):   0.0084
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.0305
 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):  8.32E-007 Pa (6.24E-009 mm Hg)
  Log Koa (Koawin est  ): 14.363
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.61 
       Octanol/air (Koa) model:  56.6 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.992 
       Mackay model           :  0.997 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 268.9379 E-12 cm3/molecule-sec
      Half-Life =     0.040 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    28.635 Min
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.175000 E-17 cm3/molecule-sec
      Half-Life =     6.549 Days (at 7E11 mol/cm3)
   Fraction sorbed to airborne particulates (phi): 0.994 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  39.85
      Log Koc:  1.600 

 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: -4.72 (estimated)

 Volatilization from Water:
    Henry LC:  2.02E-021 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 4.464E+017  hours   (1.86E+016 days)
    Half-Life from Model Lake :  4.87E+018  hours   (2.029E+017 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  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       5.99e-012       0.949        1000       
   Water     46.5            900          1000       
   Soil      53.5            1.8e+003     1000       
   Sediment  0.0892          8.1e+003     0          
     Persistence Time: 973 hr