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ChemSpider 2D Image | Trimethylsilyl N,S-bis(trimethylsilyl)-L-cysteinate | C12H31NO2SSi3

Trimethylsilyl N,S-bis(trimethylsilyl)-L-cysteinate

  • Molecular FormulaC12H31NO2SSi3
  • Average mass337.702 Da
  • Monoisotopic mass337.138336 Da
  • ChemSpider ID10263866
  • defined stereocentres - 1 of 1 defined stereocentres


More details:





Date of deprecation: 11:04, Feb 21, 2014
Reason for deprecation: Deprecate record: there are no supporting data sources.

If you believe this record was deprecated in error, please use the Comment on this record button to contact the ChemSpider team.

Common reasons for deprecation are:
  • Chemically impossible structures (eg. incorrect valence atoms)
  • Lack of any linking data sources
  • Poor depiction of a structure that is already in ChemSpider

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

Alanine, N-(trimethylsilyl)-3-[(trimethylsilyl)thio]-, trimethylsilyl ester, L-
L-Cysteine, N,S-bis(trimethylsilyl)-, trimethylsilyl ester [ACD/Index Name]
N,S-Bis(triméthylsilyl)-L-cystéinate de triméthylsilyle [French] [ACD/IUPAC Name]
Trimethylsilyl N,S-bis(trimethylsilyl)-L-cysteinate [ACD/IUPAC Name]
Trimethylsilyl-N,S-bis(trimethylsilyl)-L-cysteinat [German] [ACD/IUPAC Name]
7364-50-3 [RN]

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

Density: 0.9±0.0 g/cm3
Boiling Point: 283.5±0.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.0 mmHg at 25°C
Enthalpy of Vaporization: 52.2±0.0 kJ/mol
Flash Point: 125.3±0.0 °C
Index of Refraction: 1.451
Molar Refractivity: 97.1±0.0 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 8
#Rule of 5 Violations: 1
ACD/LogP: 5.10
ACD/LogD (pH 5.5): 2.21
ACD/BCF (pH 5.5): 5.69
ACD/KOC (pH 5.5): 18.22
ACD/LogD (pH 7.4): 3.68
ACD/BCF (pH 7.4): 169.85
ACD/KOC (pH 7.4): 543.84
Polar Surface Area: 64 Å2
Polarizability: 38.5±0.0 10-24cm3
Surface Tension: 22.8±0.0 dyne/cm
Molar Volume: 360.5±0.0 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) =  4.44

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  296.94  (Adapted Stein & Brown method)
    Melting Pt (deg C):  49.55  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00137  (Modified Grain method)
    Subcooled liquid VP: 0.0023 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):  1.194
       log Kow used: 4.44 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.46022 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Esters
       Silanes (alkoxy)
       Silamines

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.40E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  5.098E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.44  (KowWin est)
  Log Kaw used:  -4.242  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.682
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5868
   Biowin2 (Non-Linear Model)     :   0.1435
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.4529  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3605  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.2901
   Biowin6 (MITI Non-Linear Model):   0.0012
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.0199
 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):  0.307 Pa (0.0023 mm Hg)
  Log Koa (Koawin est  ): 8.682
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  9.78E-006 
       Octanol/air (Koa) model:  0.000118 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000353 
       Mackay model           :  0.000782 
       Octanol/air (Koa) model:  0.00935 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  17.1866 E-12 cm3/molecule-sec
      Half-Life =     0.622 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     7.468 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.000568 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  4542
      Log Koc:  3.657 

 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 = 2.716 (BCF = 520.4)
       log Kow used: 4.44 (estimated)

 Volatilization from Water:
    Henry LC:  1.4E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      770.4  hours   (32.1 days)
    Half-Life from Model Lake :       8558  hours   (356.6 days)

 Removal In Wastewater Treatment:
    Total removal:              52.86  percent
    Total biodegradation:        0.50  percent
    Total sludge adsorption:    52.33  percent
    Total to Air:                0.04  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.478           14.9         1000       
   Water     15.2            900          1000       
   Soil      74.3            1.8e+003     1000       
   Sediment  9.97            8.1e+003     0          
     Persistence Time: 1.2e+003 hr




                    

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