ChemSpider 2D Image | 5-Hydroxy-3-(4-hydroxybenzyl)-7,8-dimethoxy-2,3-dihydro-4H-chromen-4-one | C18H18O6

5-Hydroxy-3-(4-hydroxybenzyl)-7,8-dimethoxy-2,3-dihydro-4H-chromen-4-one

  • Molecular FormulaC18H18O6
  • Average mass330.332 Da
  • Monoisotopic mass330.110352 Da
  • ChemSpider ID10254760

More details:

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

2,3-Dihydro-5-hydroxy-3-[(4-hydroxyphenyl)methyl]-7,8-dimethoxy-4H-1-benzopyran-4-one
4H-1-Benzopyran-4-one, 2,3-dihydro-5-hydroxy-3-[(4-hydroxyphenyl)methyl]-7,8-dimethoxy- [ACD/Index Name]
5-Hydroxy-3-(4-hydroxybenzyl)-7,8-dimethoxy-2,3-dihydro-4H-chromen-4-on [German] [ACD/IUPAC Name]
5-Hydroxy-3-(4-hydroxybenzyl)-7,8-dimethoxy-2,3-dihydro-4H-chromen-4-one [ACD/IUPAC Name]
5-Hydroxy-3-(4-hydroxybenzyl)-7,8-diméthoxy-2,3-dihydro-4H-chromén-4-one [French] [ACD/IUPAC Name]
93078-82-1 [RN]
5-Hydroxy-3-(4-hydroxybenzyl)-7,8-dimethoxy-4-chromanone
5-hydroxy-3-[(4-hydroxyphenyl)methyl]-7,8-dimethoxy-2,3-dihydro-1-benzopyran-4-one
5-hydroxy-3-[(4-hydroxyphenyl)methyl]-7,8-dimethoxy-3,4-dihydro-2H-1-benzopyran-4-one
7-O-Methyl-3,9-dihydropunctatin

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

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

Density: 1.3±0.1 g/cm3
Boiling Point: 579.2±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.7 mmHg at 25°C
Enthalpy of Vaporization: 89.9±3.0 kJ/mol
Flash Point: 213.3±23.6 °C
Index of Refraction: 1.617
Molar Refractivity: 86.4±0.3 cm3
#H bond acceptors: 6
#H bond donors: 2
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 3.73
ACD/LogD (pH 5.5): 3.05
ACD/BCF (pH 5.5): 122.28
ACD/KOC (pH 5.5): 1084.69
ACD/LogD (pH 7.4): 2.94
ACD/BCF (pH 7.4): 95.44
ACD/KOC (pH 7.4): 846.55
Polar Surface Area: 85 Å2
Polarizability: 34.3±0.5 10-24cm3
Surface Tension: 56.7±3.0 dyne/cm
Molar Volume: 247.0±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) =  3.75

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  484.54  (Adapted Stein & Brown method)
    Melting Pt (deg C):  205.38  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.03E-011  (Modified Grain method)
    Subcooled liquid VP: 1.65E-009 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):  19.55
       log Kow used: 3.75 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  307.8 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.31E-015  atm-m3/mole
   Group Method:   4.45E-016  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  4.513E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.75  (KowWin est)
  Log Kaw used:  -13.271  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  17.021
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.2791
   Biowin2 (Non-Linear Model)     :   0.9991
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3102  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5911  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5796
   Biowin6 (MITI Non-Linear Model):   0.3520
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3010
 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):  2.2E-007 Pa (1.65E-009 mm Hg)
  Log Koa (Koawin est  ): 17.021
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  13.6 
       Octanol/air (Koa) model:  2.58E+004 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.998 
       Mackay model           :  0.999 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 234.0654 E-12 cm3/molecule-sec
      Half-Life =     0.046 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.548 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   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    :  1.692E+004
      Log Koc:  4.228 

 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 = 1.344 (BCF = 22.1)
       log Kow used: 3.75 (estimated)

 Volatilization from Water:
    Henry LC:  1.31E-015 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 8.123E+011  hours   (3.385E+010 days)
    Half-Life from Model Lake : 8.862E+012  hours   (3.692E+011 days)

 Removal In Wastewater Treatment:
    Total removal:              20.08  percent
    Total biodegradation:        0.24  percent
    Total sludge adsorption:    19.84  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       7e-006          1.1          1000       
   Water     11.3            900          1000       
   Soil      87.3            1.8e+003     1000       
   Sediment  1.47            8.1e+003     0          
     Persistence Time: 1.86e+003 hr

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