ChemSpider 2D Image | L-Methyldopa | C10H13NO4

L-Methyldopa

  • Molecular FormulaC10H13NO4
  • Average mass211.214 Da
  • Monoisotopic mass211.084457 Da
  • ChemSpider ID35562
  • defined stereocentres - 1 of 1 defined stereocentres


More details:



Featured data source



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

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1110
209-089-2 [EINECS]
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Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.4±0.1 g/cm3
Boiling Point: 441.6±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.1 mmHg at 25°C
Enthalpy of Vaporization: 73.7±3.0 kJ/mol
Flash Point: 220.9±28.7 °C
Index of Refraction: 1.635
Molar Refractivity: 53.9±0.3 cm3
#H bond acceptors: 5
#H bond donors: 5
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 1
ACD/LogP: 0.13
ACD/LogD (pH 5.5): -2.32
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -2.34
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 104 Å2
Polarizability: 21.4±0.5 10-24cm3
Surface Tension: 72.7±3.0 dyne/cm
Molar Volume: 150.5±3.0 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) =  -1.79

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  426.13  (Adapted Stein & Brown method)
    Melting Pt (deg C):  296.17  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  6.8E-011  (Modified Grain method)
    MP  (exp database):  300 dec deg C
    Subcooled liquid VP: 7.98E-008 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):  4.181e+004
       log Kow used: -1.79 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1e+004 mg/L (25 deg C)
        Exper. Ref:  MERCK INDEX (1996)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2.7112e+005 mg/L
    Wat Sol (Exper. database match) =  10000.00
       Exper. Ref:  MERCK INDEX (1996)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.73E-018  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.520E-016 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -1.79  (KowWin est)
  Log Kaw used:  -16.150  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.360
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9759
   Biowin2 (Non-Linear Model)     :   0.9193
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9472  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8293  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4637
   Biowin6 (MITI Non-Linear Model):   0.2515
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5397
 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):  1.06E-005 Pa (7.98E-008 mm Hg)
  Log Koa (Koawin est  ): 14.360
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.282 
       Octanol/air (Koa) model:  56.2 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.911 
       Mackay model           :  0.958 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  80.1273 E-12 cm3/molecule-sec
      Half-Life =     0.133 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.602 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.934 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  238.6
      Log Koc:  2.378 

 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: -1.79 (estimated)

 Volatilization from Water:
    Henry LC:  1.73E-018 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 4.919E+014  hours   (2.049E+013 days)
    Half-Life from Model Lake : 5.366E+015  hours   (2.236E+014 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       1.16e-009       3.2          1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr




                    

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