ChemSpider 2D Image | L-Methyldopate | C12H17NO4

L-Methyldopate

  • Molecular FormulaC12H17NO4
  • Average mass239.268 Da
  • Monoisotopic mass239.115753 Da
  • ChemSpider ID16351
  • defined stereocentres - 1 of 1 defined stereocentres


More details:






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

L-Methyldopate
219-720-3 [EINECS]
219-821-2 [EINECS]
2544-09-4 [RN]
2579Z4P04J
3-Hydroxy-a-methyl-L-tyrosine Ethyl Ester
3-Hydroxy-α-méthyl-L-tyrosinate d'éthyle [French] [ACD/IUPAC Name]
Alanine, 3-(3,4-dihydroxyphenyl)-2-methyl-, ethyl ester, L-
Ethyl 3-hydroxy-α-methyl-L-tyrosinate [ACD/IUPAC Name]
Ethyl-3-hydroxy-α-methyl-L-tyrosinat [German] [ACD/IUPAC Name]
More...

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

Density: 1.2±0.1 g/cm3
Boiling Point: 398.0±37.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.0 mmHg at 25°C
Enthalpy of Vaporization: 67.4±3.0 kJ/mol
Flash Point: 194.5±26.5 °C
Index of Refraction: 1.573
Molar Refractivity: 63.4±0.3 cm3
#H bond acceptors: 5
#H bond donors: 4
#Freely Rotating Bonds: 5
#Rule of 5 Violations: 0
ACD/LogP: 0.81
ACD/LogD (pH 5.5): -0.96
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.08
ACD/LogD (pH 7.4): 0.57
ACD/BCF (pH 7.4): 1.38
ACD/KOC (pH 7.4): 36.96
Polar Surface Area: 93 Å2
Polarizability: 25.1±0.5 10-24cm3
Surface Tension: 54.2±3.0 dyne/cm
Molar Volume: 192.3±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) =  1.01

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  371.14  (Adapted Stein & Brown method)
    Melting Pt (deg C):  148.38  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.58E-007  (Modified Grain method)
    Subcooled liquid VP: 2.83E-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):  1.435e+005
       log Kow used: 1.01 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  7.4438e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.36E-016  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.466E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.01  (KowWin est)
  Log Kaw used:  -13.522  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.532
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0640
   Biowin2 (Non-Linear Model)     :   0.9958
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6608  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.6322  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5926
   Biowin6 (MITI Non-Linear Model):   0.4650
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4712
 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):  0.000377 Pa (2.83E-006 mm Hg)
  Log Koa (Koawin est  ): 14.532
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.00795 
       Octanol/air (Koa) model:  83.6 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.223 
       Mackay model           :  0.389 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  81.2690 E-12 cm3/molecule-sec
      Half-Life =     0.132 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.579 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.306 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  2355
      Log Koc:  3.372 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  5.843E-003  L/mol-sec
  Kb Half-Life at pH 8:       3.759  years  
  Kb Half-Life at pH 7:      37.592  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.079 (BCF = 1.2)
       log Kow used: 1.01 (estimated)

 Volatilization from Water:
    Henry LC:  7.36E-016 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:  1.23E+012  hours   (5.127E+010 days)
    Half-Life from Model Lake : 1.342E+013  hours   (5.593E+011 days)

 Removal In Wastewater Treatment:
    Total removal:               1.89  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.80  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       1.28e-008       3.16         1000       
   Water     40.5            900          1000       
   Soil      59.4            1.8e+003     1000       
   Sediment  0.0857          8.1e+003     0          
     Persistence Time: 1.06e+003 hr




                    

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