ChemSpider 2D Image | (2R,7a'S,9a'R)-6',6'-Dimethyl-3',7'-dioxo-1',5',6',7',7a',9a'-hexahydrospiro[oxirane-2,4'-pentaleno[1,6a-c]pyran]-9'-carboxylic acid | C15H16O6

(2R,7a'S,9a'R)-6',6'-Dimethyl-3',7'-dioxo-1',5',6',7',7a',9a'-hexahydrospiro[oxirane-2,4'-pentaleno[1,6a-c]pyran]-9'-carboxylic acid

  • Molecular FormulaC15H16O6
  • Average mass292.284 Da
  • Monoisotopic mass292.094696 Da
  • ChemSpider ID2342276

  • defined stereocentres - 3 of 4 defined stereocentres

More details:

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

(2R,7a'S,9a'R)-6',6'-Dimethyl-3',7'-dioxo-1',5',6',7',7a',9a'-hexahydrospiro[oxirane-2,4'-pentaleno[1,6a-c]pyran]-9'-carboxylic acid [ACD/IUPAC Name]
Spiro[oxirane-2,4'(3'H)-pentaleno[1,6a-c]pyran]-9'-carboxylic acid, 1',5',6',7',7'a,9'a-hexahydro-6',6'-dimethyl-3',7'-dioxo-, (2R,7a'S,9a'R)- [ACD/Index Name]
67055-57-6 [RN]
Pentalenolactone G
Spiro(oxirane-2,1'(2'H)-pentaleno(1,6a-c)pyran)-5'-carboxylic acid, 4',4'a,6'a,7',8',9'-hexahydro-8',8'-dimethyl-2',7'-dioxo-, (1'R-(1'α,4'aalpha,6'abeta,9'aS*))-

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

Density: 1.5±0.1 g/cm3
Boiling Point: 550.8±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±3.2 mmHg at 25°C
Enthalpy of Vaporization: 90.9±6.0 kJ/mol
Flash Point: 211.9±23.6 °C
Index of Refraction: 1.610
Molar Refractivity: 68.4±0.4 cm3
#H bond acceptors: 6
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 0.44
ACD/LogD (pH 5.5): -1.07
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.25
ACD/LogD (pH 7.4): -2.80
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 93 Å2
Polarizability: 27.1±0.5 10-24cm3
Surface Tension: 62.5±5.0 dyne/cm
Molar Volume: 197.3±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) =  0.23

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  452.43  (Adapted Stein & Brown method)
    Melting Pt (deg C):  190.38  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.9E-009  (Modified Grain method)
    Subcooled liquid VP: 4.28E-007 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):  2.131e+004
       log Kow used: 0.23 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  8576.9 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Epoxides-acid
       Esters-acid
       Vinyl/Allyl Ketones-acid

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.64E-015  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.426E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.23  (KowWin est)
  Log Kaw used:  -12.722  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.952
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :  -0.0371
   Biowin2 (Non-Linear Model)     :   0.0042
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3906  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5483  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7806
   Biowin6 (MITI Non-Linear Model):   0.5274
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.9709
 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):  5.71E-005 Pa (4.28E-007 mm Hg)
  Log Koa (Koawin est  ): 12.952
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0526 
       Octanol/air (Koa) model:  2.2 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.655 
       Mackay model           :  0.808 
       Octanol/air (Koa) model:  0.994 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  39.7116 E-12 cm3/molecule-sec
      Half-Life =     0.269 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.232 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     7.393750 E-17 cm3/molecule-sec
      Half-Life =     0.155 Days (at 7E11 mol/cm3)
      Half-Life =      3.720 Hrs
   Fraction sorbed to airborne particulates (phi): 0.731 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  10
      Log Koc:  1.000 

 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: 0.23 (estimated)

 Volatilization from Water:
    Henry LC:  4.64E-015 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.157E+011  hours   (8.989E+009 days)
    Half-Life from Model Lake : 2.353E+012  hours   (9.806E+010 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       2.33e-007       2.36         1000       
   Water     45.3            900          1000       
   Soil      54.6            1.8e+003     1000       
   Sediment  0.0884          8.1e+003     0          
     Persistence Time: 988 hr

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