ChemSpider 2D Image | 1-methoxy-2-methyl-benzene | C8H9O

1-methoxy-2-methyl-benzene

  • Molecular FormulaC8H9O
  • Average mass Da
  • Monoisotopic mass Da
  • ChemSpider ID10807101

More details:

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

Density:
Boiling Point: 161.7±9.0 °C at 760 mmHg
Vapour Pressure: 2.9±0.3 mmHg at 25°C
Enthalpy of Vaporization: 38.2±3.0 kJ/mol
Flash Point: 49.5±4.9 °C
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 2.59
ACD/LogD (pH 5.5): 2.70
ACD/BCF (pH 5.5): 66.47
ACD/KOC (pH 5.5): 701.89
ACD/LogD (pH 7.4): 2.70
ACD/BCF (pH 7.4): 66.47
ACD/KOC (pH 7.4): 701.89
Polar Surface Area: 9 Å2
Polarizability:
Surface Tension:
Molar Volume:

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.62
    Log Kow (Exper. database match) =  2.74
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  170.80  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -23.00  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.49  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -34.1 deg C
    BP  (exp database):  171 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  450.4
       log Kow used: 2.74 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  293.93 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.52E-004  atm-m3/mole
   Group Method:   4.66E-003  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  5.318E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.74  (exp database)
  Log Kaw used:  -1.842  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.582
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8760
   Biowin2 (Non-Linear Model)     :   0.9837
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7962  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6801  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6187
   Biowin6 (MITI Non-Linear Model):   0.7556
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1810
 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):  180 Pa (1.35 mm Hg)
  Log Koa (Koawin est  ): 4.582
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.67E-008 
       Octanol/air (Koa) model:  9.38E-009 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  6.02E-007 
       Mackay model           :  1.33E-006 
       Octanol/air (Koa) model:  7.5E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  27.3265 E-12 cm3/molecule-sec
      Half-Life =     0.391 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     4.697 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 9.68E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  194.7
      Log Koc:  2.289 

 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 = 1.410 (BCF = 25.69)
       log Kow used: 2.74 (expkow database)

 Volatilization from Water:
    Henry LC:  0.00466 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      1.267  hours
    Half-Life from Model Lake :      106.5  hours   (4.437 days)

 Removal In Wastewater Treatment:
    Total removal:              65.54  percent
    Total biodegradation:        0.05  percent
    Total sludge adsorption:     2.36  percent
    Total to Air:               63.13  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       5.88            9.39         1000       
   Water     42.3            360          1000       
   Soil      51.4            720          1000       
   Sediment  0.441           3.24e+003    0          
     Persistence Time: 150 hr

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