ChemSpider 2D Image | (6R,7S)-6-Hydroxy-8,8-dimethyl-2-oxo-7,8-dihydro-2H,6H-pyrano[3,2-g]chromen-7-yl acetate | C16H16O6

(6R,7S)-6-Hydroxy-8,8-dimethyl-2-oxo-7,8-dihydro-2H,6H-pyrano[3,2-g]chromen-7-yl acetate

  • Molecular FormulaC16H16O6
  • Average mass304.295 Da
  • Monoisotopic mass304.094696 Da
  • ChemSpider ID4478837
  • defined stereocentres - 2 of 2 defined stereocentres


More details:






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

(6R,7S)-6-Hydroxy-8,8-dimethyl-2-oxo-7,8-dihydro-2H,6H-pyrano[3,2-g]chromen-7-yl acetate [ACD/IUPAC Name]
(6R,7S)-6-Hydroxy-8,8-dimethyl-2-oxo-7,8-dihydro-2H,6H-pyrano[3,2-g]chromen-7-yl-acetat [German] [ACD/IUPAC Name]
2H,6H-Benzo[1,2-b:5,4-b']dipyran-2-one, 7-(acetyloxy)-7,8-dihydro-6-hydroxy-8,8-dimethyl-, (6R,7S)- [ACD/Index Name]
Acétate de (6R,7S)-6-hydroxy-8,8-diméthyl-2-oxo-7,8-dihydro-2H,6H-pyrano[3,2-g]chromén-7-yle [French] [ACD/IUPAC Name]
3'(S)-Acetoxy-4'(R)-hydroxy-3',4'-dihydroxanthyletin

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

Density: 1.4±0.1 g/cm3
Boiling Point: 451.7±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.2 mmHg at 25°C
Enthalpy of Vaporization: 74.9±3.0 kJ/mol
Flash Point: 166.3±22.2 °C
Index of Refraction: 1.605
Molar Refractivity: 75.8±0.4 cm3
#H bond acceptors: 6
#H bond donors: 1
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.46
ACD/LogD (pH 5.5): 1.86
ACD/BCF (pH 5.5): 15.21
ACD/KOC (pH 5.5): 244.27
ACD/LogD (pH 7.4): 1.86
ACD/BCF (pH 7.4): 15.21
ACD/KOC (pH 7.4): 244.27
Polar Surface Area: 82 Å2
Polarizability: 30.1±0.5 10-24cm3
Surface Tension: 58.3±5.0 dyne/cm
Molar Volume: 220.1±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) =  1.32

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  450.15  (Adapted Stein & Brown method)
    Melting Pt (deg C):  177.20  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.58E-010  (Modified Grain method)
    Subcooled liquid VP: 6.02E-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):  2799
       log Kow used: 1.32 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  804.68 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Acrylates
       Esters
       Benzyl Alcohols

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.07E-014  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.260E-014 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.32  (KowWin est)
  Log Kaw used:  -11.779  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  13.099
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0577
   Biowin2 (Non-Linear Model)     :   0.9998
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6969  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.9198  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.9510
   Biowin6 (MITI Non-Linear Model):   0.8638
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6523
 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):  8.03E-007 Pa (6.02E-009 mm Hg)
  Log Koa (Koawin est  ): 13.099
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.74 
       Octanol/air (Koa) model:  3.08 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.993 
       Mackay model           :  0.997 
       Octanol/air (Koa) model:  0.996 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  59.2197 E-12 cm3/molecule-sec
      Half-Life =     0.181 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.167 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     2.100000 E-17 cm3/molecule-sec
      Half-Life =     0.546 Days (at 7E11 mol/cm3)
      Half-Life =     13.097 Hrs
   Fraction sorbed to airborne particulates (phi): 0.995 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  20.28
      Log Koc:  1.307 

 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 = 0.316 (BCF = 2.071)
       log Kow used: 1.32 (estimated)

 Volatilization from Water:
    Henry LC:  4.07E-014 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.509E+010  hours   (1.046E+009 days)
    Half-Life from Model Lake : 2.738E+011  hours   (1.141E+010 days)

 Removal In Wastewater Treatment:
    Total removal:               1.93  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.84  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       8.8e-005        3.26         1000       
   Water     36.2            900          1000       
   Soil      63.8            1.8e+003     1000       
   Sediment  0.0839          8.1e+003     0          
     Persistence Time: 1.13e+003 hr




                    

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