ChemSpider 2D Image | Di-L-phenylalanine | C18H20N2O3

Di-L-phenylalanine

  • Molecular FormulaC18H20N2O3
  • Average mass312.363 Da
  • Monoisotopic mass312.147400 Da
  • ChemSpider ID5361193

  • defined stereocentres - 2 of 2 defined stereocentres

More details:

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

Di-L-phenylalanine
(2S)-2-[(2S)-2-amino-3-phenylpropanamido]-3-phenylpropanoic acid
219-930-5 [EINECS]
2577-40-4 [RN]
Diphenylalanine
FF
H-L-Phe-L-Phe-OH
H-PHE-PHE-OH
l-Phe-l-Phe
L-Phenylalanine, L-phenylalanyl- [ACD/Index Name]
More...

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

NSC 620336 [DBID]
ZINC01605264 [DBID]

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

Density: 1.2±0.1 g/cm3
Boiling Point: 582.8±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.7 mmHg at 25°C
Enthalpy of Vaporization: 91.6±3.0 kJ/mol
Flash Point: 306.2±30.1 °C
Index of Refraction: 1.605
Molar Refractivity: 87.5±0.3 cm3
#H bond acceptors: 5
#H bond donors: 4
#Freely Rotating Bonds: 7
#Rule of 5 Violations: 0
ACD/LogP: 2.48
ACD/LogD (pH 5.5): -0.76
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -1.22
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 92 Å2
Polarizability: 34.7±0.5 10-24cm3
Surface Tension: 55.7±3.0 dyne/cm
Molar Volume: 254.0±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) =  2.16

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  557.66  (Adapted Stein & Brown method)
    Melting Pt (deg C):  315.37  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  5.03E-013  (Modified Grain method)
    Subcooled liquid VP: 9.25E-010 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):  149.4
       log Kow used: 2.16 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  16358 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.59E-017  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.384E-015 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.16  (KowWin est)
  Log Kaw used:  -14.454  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  16.614
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.4010
   Biowin2 (Non-Linear Model)     :   0.9996
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7380  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.9041  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.0066
   Biowin6 (MITI Non-Linear Model):   0.0179
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4609
 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):  1.23E-007 Pa (9.25E-010 mm Hg)
  Log Koa (Koawin est  ): 16.614
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  24.3 
       Octanol/air (Koa) model:  1.01E+004 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.999 
       Mackay model           :  0.999 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  65.4829 E-12 cm3/molecule-sec
      Half-Life =     0.163 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.960 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.999 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  4928
      Log Koc:  3.693 

 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: 2.16 (estimated)

 Volatilization from Water:
    Henry LC:  8.59E-017 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.205E+013  hours   (5.019E+011 days)
    Half-Life from Model Lake : 1.314E+014  hours   (5.476E+012 days)

 Removal In Wastewater Treatment:
    Total removal:               2.42  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.32  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       1.88e-006       3.92         1000       
   Water     20.3            900          1000       
   Soil      79.6            1.8e+003     1000       
   Sediment  0.0963          8.1e+003     0          
     Persistence Time: 1.5e+003 hr

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