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ChemSpider 2D Image | L-Tryptophan | C11H12N2O2

L-Tryptophan

  • Molecular FormulaC11H12N2O2
  • Average mass204.225 Da
  • Monoisotopic mass204.089874 Da
  • ChemSpider ID6066
  • defined stereocentres - 1 of 1 defined stereocentres


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

L-Tryptophan [ACD/Index Name] [ACD/IUPAC Name] [JP15]
(−)-tryptophan
(-)-Tryptophan
(2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
(2S)-2-Amino-3-(1H-indol-3-yl)propansäure [German]
(L)-TRYPTOPHAN
(S)-1H-Indole-3-alanine
(S)-2-Amino-3-(3-indolyl)propionic acid
(S)-a-Amino-1H-indole-3-propanoic acid
(S)-a-Aminoindole-3-propionic acid
More...

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

6173 [DBID]
8DUH1N11BX [DBID]
MFCD00064340 [DBID]
YN6130000 [DBID]
78019_FLUKA [DBID]
93659_FLUKA [DBID]
93670_FLUKA [DBID]
AI3-18478 [DBID]
AIDS011920 [DBID]
AIDS-011920 [DBID]
More...

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

Density: 1.4±0.1 g/cm3
Boiling Point: 447.9±35.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.1 mmHg at 25°C
Enthalpy of Vaporization: 74.4±3.0 kJ/mol
Flash Point: 224.7±25.9 °C
Index of Refraction: 1.698
Molar Refractivity: 57.8±0.3 cm3
#H bond acceptors: 4
#H bond donors: 4
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 1.04
ACD/LogD (pH 5.5): -1.06
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -1.06
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 79 Å2
Polarizability: 22.9±0.5 10-24cm3
Surface Tension: 71.2±3.0 dyne/cm
Molar Volume: 149.9±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) =  -1.22
    Log Kow (Exper. database match) =  -1.05
       Exper. Ref:  Hansch,C et al. (1995)
    Log Kow (Exper. database match) =  -1.06
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  432.24  (Adapted Stein & Brown method)
    Melting Pt (deg C):  278.99  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.94E-009  (Modified Grain method)
    MP  (exp database):  282-85 dec deg C
    Subcooled liquid VP: 1.35E-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):  2848
       log Kow used: -1.06 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1.34e+004 mg/L (25 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1046.4 mg/L
    Wat Sol (Exper. database match) =  13400.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.98E-014  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.830E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -1.06  (exp database)
  Log Kaw used:  -12.092  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.032
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9315
   Biowin2 (Non-Linear Model)     :   0.9197
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0620  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9134  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2537
   Biowin6 (MITI Non-Linear Model):   0.1049
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4354
 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):  0.00018 Pa (1.35E-006 mm Hg)
  Log Koa (Koawin est  ): 11.032
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0167 
       Octanol/air (Koa) model:  0.0264 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.376 
       Mackay model           :  0.571 
       Octanol/air (Koa) model:  0.679 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 239.3126 E-12 cm3/molecule-sec
      Half-Life =     0.045 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.536 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.474 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  368.7
      Log Koc:  2.567 

 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: -1.06 (expkow database)

 Volatilization from Water:
    Henry LC:  1.98E-014 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 4.226E+010  hours   (1.761E+009 days)
    Half-Life from Model Lake :  4.61E+011  hours   (1.921E+010 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       1.13e-006       1.07         1000       
   Water     39              360          1000       
   Soil      61              720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr




                    

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