ChemSpider 2D Image | 5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone | C20H20O9

5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone

  • Molecular FormulaC20H20O9
  • Average mass404.367 Da
  • Monoisotopic mass404.110718 Da
  • ChemSpider ID328406

More details:

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

102673-80-3 [RN]
4H-1-Benzopyran-4-one, 5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6,7,8-tetramethoxy- [ACD/Index Name]
5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone
5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6,7,8-tetramethoxy-4H-1-benzopyran-4-one
5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6,7,8-tetramethoxy-4H-chromen-4-on [German] [ACD/IUPAC Name]
5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6,7,8-tetramethoxy-4H-chromen-4-one [ACD/IUPAC Name]
5-Hydroxy-2-(3-hydroxy-4-méthoxyphényl)-3,6,7,8-tétraméthoxy-4H-chromén-4-one [French] [ACD/IUPAC Name]
5-Hydroxy-2-(3-hydroxy-4-methoxy-phenyl)-3,6,7,8-tetramethoxy-chromen-4-one

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

NCI60_014334 [DBID]
NSC642321 [DBID]

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

Density: 1.4±0.1 g/cm3
Boiling Point: 660.7±55.0 °C at 760 mmHg
Vapour Pressure: 0.0±2.1 mmHg at 25°C
Enthalpy of Vaporization: 100.7±3.0 kJ/mol
Flash Point: 235.5±25.0 °C
Index of Refraction: 1.628
Molar Refractivity: 99.5±0.4 cm3
#H bond acceptors: 9
#H bond donors: 2
#Freely Rotating Bonds: 6
#Rule of 5 Violations: 0
ACD/LogP: 1.39
ACD/LogD (pH 5.5): 2.18
ACD/BCF (pH 5.5): 26.34
ACD/KOC (pH 5.5): 354.54
ACD/LogD (pH 7.4): 1.38
ACD/BCF (pH 7.4): 4.13
ACD/KOC (pH 7.4): 55.53
Polar Surface Area: 113 Å2
Polarizability: 39.4±0.5 10-24cm3
Surface Tension: 65.5±5.0 dyne/cm
Molar Volume: 280.3±5.0 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) =  1.70

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  546.80  (Adapted Stein & Brown method)
    Melting Pt (deg C):  234.46  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.33E-013  (Modified Grain method)
    Subcooled liquid VP: 2.4E-011 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):  102.6
       log Kow used: 1.70 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  434.31 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Phenols
       Vinyl/Allyl Ketones
       Vinyl/Allyl Ethers

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.96E-018  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.897E-016 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.70  (KowWin est)
  Log Kaw used:  -15.791  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  17.491
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.1057
   Biowin2 (Non-Linear Model)     :   0.9984
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.0966  (months      )
   Biowin4 (Primary Survey Model) :   3.6973  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7596
   Biowin6 (MITI Non-Linear Model):   0.4076
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5543
 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):  3.2E-009 Pa (2.4E-011 mm Hg)
  Log Koa (Koawin est  ): 17.491
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  937 
       Octanol/air (Koa) model:  7.6E+004 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 254.4780 E-12 cm3/molecule-sec
      Half-Life =     0.042 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.504 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    52.500000 E-17 cm3/molecule-sec
      Half-Life =     0.022 Days (at 7E11 mol/cm3)
      Half-Life =     31.433 Min
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.696E+004
      Log Koc:  4.229 

 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 = -0.235 (BCF = 0.5826)
       log Kow used: 1.70 (estimated)

 Volatilization from Water:
    Henry LC:  3.96E-018 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.973E+014  hours   (1.239E+013 days)
    Half-Life from Model Lake : 3.243E+015  hours   (1.351E+014 days)

 Removal In Wastewater Treatment:
    Total removal:               2.05  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.95  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       1.9e-006        0.345        1000       
   Water     30              1.44e+003    1000       
   Soil      69.9            2.88e+003    1000       
   Sediment  0.0883          1.3e+004     0          
     Persistence Time: 1.63e+003 hr

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