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ChemSpider 2D Image | β-tocopherol | C28H48O2

β-tocopherol

  • Molecular FormulaC28H48O2
  • Average mass416.680 Da
  • Monoisotopic mass416.365417 Da
  • ChemSpider ID5256784

  • defined stereocentres - 3 of 3 defined stereocentres

More details:

Featured data source
The Merck Index Online

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

(2R)-2,5,8-trimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-ol
(2R)-2,5,8-Trimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-6-chromanol [German] [ACD/IUPAC Name]
(2R)-2,5,8-Trimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-6-chromanol [ACD/IUPAC Name]
(2R)-2,5,8-Triméthyl-2-[(4R,8R)-4,8,12-triméthyltridécyl]-6-chromanol [French] [ACD/IUPAC Name]
(2R)-2,5,8-Trimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]chroman-6-ol
(2R)-3,4-dihydro-2,5,8-trimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-2H-1-benzopyran-6-ol
(R)-2,5,8-Trimethyl-2-((4R,8R)-4,8,12-trimethyltridecyl)chroman-6-ol
148-03-8 [RN]
205-708-5 [EINECS]
2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,8-trimethyl-2-((4R,8R)-4,8,12-trimethyltridecyl)-, (2R)-
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

8K9365K9PX [DBID]
9U6A490501 [DBID]
UNII:8K9365K9PX [DBID]
148-03-8; 16698-35-4 [DBID]
CHEBI:22855 [DBID]
UNII:9U6A490501 [DBID]
UNII-8K9365K9PX [DBID]
UNII-9U6A490501 [DBID]

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

Density: 0.9±0.1 g/cm3
Boiling Point: 516.3±49.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.4 mmHg at 25°C
Enthalpy of Vaporization: 81.8±3.0 kJ/mol
Flash Point: 204.7±24.1 °C
Index of Refraction: 1.495
Molar Refractivity: 130.2±0.3 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 12
#Rule of 5 Violations: 1
ACD/LogP: 11.44
ACD/LogD (pH 5.5): 9.74
ACD/BCF (pH 5.5): 1000000.00
ACD/KOC (pH 5.5): 4736093.50
ACD/LogD (pH 7.4): 9.74
ACD/BCF (pH 7.4): 1000000.00
ACD/KOC (pH 7.4): 4735059.00
Polar Surface Area: 29 Å2
Polarizability: 51.6±0.5 10-24cm3
Surface Tension: 34.9±3.0 dyne/cm
Molar Volume: 446.5±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) =  11.63

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  467.27  (Adapted Stein & Brown method)
    Melting Pt (deg C):  192.89  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.78E-008  (Modified Grain method)
    MP  (exp database):  < 25 deg C
    BP  (exp database):  205 @ 0.1 mm Hg deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.069e-006
       log Kow used: 11.63 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  6.0606e-006 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.22E-006  atm-m3/mole
   Group Method:   7.39E-005  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.426E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  11.63  (KowWin est)
  Log Kaw used:  -3.881  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  15.511
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7770
   Biowin2 (Non-Linear Model)     :   0.5638
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.8399  (months      )
   Biowin4 (Primary Survey Model) :   3.0043  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1495
   Biowin6 (MITI Non-Linear Model):   0.0582
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.9817
 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):  3.71E-006 Pa (2.78E-008 mm Hg)
  Log Koa (Koawin est  ): 15.511
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.809 
       Octanol/air (Koa) model:  796 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.967 
       Mackay model           :  0.985 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 230.3083 E-12 cm3/molecule-sec
      Half-Life =     0.046 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.557 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.976 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  3.038E+007
      Log Koc:  7.483 

 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: 11.63 (estimated)

 Volatilization from Water:
    Henry LC:  7.39E-005 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      18.26  hours
    Half-Life from Model Lake :      370.3  hours   (15.43 days)

 Removal In Wastewater Treatment:
    Total removal:              94.04  percent
    Total biodegradation:        0.78  percent
    Total sludge adsorption:    93.26  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       0.011           1.11         1000       
   Water     1.39            1.44e+003    1000       
   Soil      29.9            2.88e+003    1000       
   Sediment  68.7            1.3e+004     0          
     Persistence Time: 4.71e+003 hr

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