ChemSpider 2D Image | combretastatin D2 | C18H16O4

combretastatin D2

  • Molecular FormulaC18H16O4
  • Average mass296.317 Da
  • Monoisotopic mass296.104858 Da
  • ChemSpider ID9954004

  • Double-bond stereo - Double-bond stereo

More details:

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

2,11-Dioxatricyclo[13.2.2.13,7]eicosa-3,5,7(20),13,15,17,18-heptaen-10-one, 4-hydroxy- [ACD/Index Name]
4-Hydroxy-2,11-dioxatricyclo[13.2.2.13,7]icosa-1(17),3(20),4,6,13,15,18-heptaen-10-on [German] [ACD/IUPAC Name]
4-Hydroxy-2,11-dioxatricyclo[13.2.2.13,7]icosa-1(17),3(20),4,6,13,15,18-heptaen-10-one [ACD/IUPAC Name]
4-Hydroxy-2,11-dioxatricyclo[13.2.2.13,7]icosa-1(17),3(20),4,6,13,15,18-heptaén-10-one [French] [ACD/IUPAC Name]
combretastatin D2
126191-23-9 [RN]
Combretastatin D-2

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

Density: 1.2±0.1 g/cm3
Boiling Point: 515.7±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.4 mmHg at 25°C
Enthalpy of Vaporization: 81.7±3.0 kJ/mol
Flash Point: 191.5±23.6 °C
Index of Refraction: 1.588
Molar Refractivity: 81.7±0.3 cm3
#H bond acceptors: 4
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 2.82
ACD/LogD (pH 5.5): 2.97
ACD/BCF (pH 5.5): 105.84
ACD/KOC (pH 5.5): 979.13
ACD/LogD (pH 7.4): 2.96
ACD/BCF (pH 7.4): 104.47
ACD/KOC (pH 7.4): 966.47
Polar Surface Area: 56 Å2
Polarizability: 32.4±0.5 10-24cm3
Surface Tension: 46.3±3.0 dyne/cm
Molar Volume: 242.8±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) =  3.80

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  470.92  (Adapted Stein & Brown method)
    Melting Pt (deg C):  187.12  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  4.47E-010  (Modified Grain method)
    Subcooled liquid VP: 2.22E-008 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):  2.158
       log Kow used: 3.80 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  7.9502 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.14E-011  atm-m3/mole
   Group Method:   2.45E-012  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  8.076E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.80  (KowWin est)
  Log Kaw used:  -9.332  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  13.132
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0830
   Biowin2 (Non-Linear Model)     :   0.9987
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6080  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.6975  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4874
   Biowin6 (MITI Non-Linear Model):   0.3717
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0898
 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):  2.96E-006 Pa (2.22E-008 mm Hg)
  Log Koa (Koawin est  ): 13.132
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.01 
       Octanol/air (Koa) model:  3.33 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.973 
       Mackay model           :  0.988 
       Octanol/air (Koa) model:  0.996 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 104.7685 E-12 cm3/molecule-sec
      Half-Life =     0.102 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.225 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    13.650000 E-17 cm3/molecule-sec
      Half-Life =     0.084 Days (at 7E11 mol/cm3)
      Half-Life =      2.015 Hrs
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.981 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.013E+005
      Log Koc:  5.006 

 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 = 2.227 (BCF = 168.7)
       log Kow used: 3.80 (estimated)

 Volatilization from Water:
    Henry LC:  2.45E-012 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 4.114E+008  hours   (1.714E+007 days)
    Half-Life from Model Lake : 4.488E+009  hours   (1.87E+008 days)

 Removal In Wastewater Treatment:
    Total removal:              21.84  percent
    Total biodegradation:        0.25  percent
    Total sludge adsorption:    21.58  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       0.000898        1.11         1000       
   Water     11.3            900          1000       
   Soil      87              1.8e+003     1000       
   Sediment  1.67            8.1e+003     0          
     Persistence Time: 1.84e+003 hr

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