ChemSpider 2D Image | Isocaffeine | C8H10N4O2

Isocaffeine

  • Molecular FormulaC8H10N4O2
  • Average mass194.191 Da
  • Monoisotopic mass194.080383 Da
  • ChemSpider ID1286

More details:






Validated by Experts, Validated by Users, Non-Validated, Removed by Users

1,3,9-Trimethyl-3,9-dihydro-1H-purin-2,6-dion [German] [ACD/IUPAC Name]
1,3,9-Trimethyl-3,9-dihydro-1H-purine-2,6-dione [ACD/IUPAC Name]
1,3,9-Triméthyl-3,9-dihydro-1H-purine-2,6-dione [French] [ACD/IUPAC Name]
1H-Purine-2,6-dione, 3,9-dihydro-1,3,9-trimethyl- [ACD/Index Name]
519-32-4 [RN]
Isocaffeine
[519-32-4]
1,3,9-Trimethyl xanthine
1,3,9-Trimethyl-3,9-dihydro-purine-2,6-dione
1,3,9-trimethylpurine-2,6-dione
More...

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

AIDS045558 [DBID]
AIDS-045558 [DBID]
NSC 28332 [DBID]
NSC28332 [DBID]
T4146_SIGMA [DBID]
ZINC00403604 [DBID]

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.5±0.1 g/cm3
Boiling Point: 416.8±37.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.0 mmHg at 25°C
Enthalpy of Vaporization: 67.0±3.0 kJ/mol
Flash Point: 205.9±26.5 °C
Index of Refraction: 1.679
Molar Refractivity: 50.4±0.5 cm3
#H bond acceptors: 6
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -0.13
ACD/LogD (pH 5.5): 0.14
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 28.45
ACD/LogD (pH 7.4): 0.14
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 28.46
Polar Surface Area: 58 Å2
Polarizability: 20.0±0.5 10-24cm3
Surface Tension: 55.8±7.0 dyne/cm
Molar Volume: 133.4±7.0 cm3

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.16

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  430.85  (Adapted Stein & Brown method)
    Melting Pt (deg C):  180.30  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.54E-008  (Modified Grain method)
    Subcooled liquid VP: 1.46E-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):  1686
       log Kow used: 0.16 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  11308 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Imides
       Imidazoles

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.58E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  5.365E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.16  (KowWin est)
  Log Kaw used:  -8.835  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.995
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6551
   Biowin2 (Non-Linear Model)     :   0.5625
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7700  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5676  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1439
   Biowin6 (MITI Non-Linear Model):   0.0521
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5019
 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):  0.000195 Pa (1.46E-006 mm Hg)
  Log Koa (Koawin est  ): 8.995
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0154 
       Octanol/air (Koa) model:  0.000243 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.358 
       Mackay model           :  0.552 
       Octanol/air (Koa) model:  0.019 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  19.4185 E-12 cm3/molecule-sec
      Half-Life =     0.551 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     6.610 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.455 (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: 0.16 (estimated)

 Volatilization from Water:
    Henry LC:  3.58E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.279E+007  hours   (9.496E+005 days)
    Half-Life from Model Lake : 2.486E+008  hours   (1.036E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       0.00145         13.2         1000       
   Water     38.2            360          1000       
   Soil      61.7            720          1000       
   Sediment  0.0709          3.24e+003    0          
     Persistence Time: 584 hr




                    

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