ChemSpider 2D Image | (3S,3aR,4S,4aR,7aR,8R,9aR)-3,4a,8-Trimethyl-2,5-dioxo-2,3,3a,4,4a,5,7a,8,9,9a-decahydroazuleno[6,5-b]furan-4-yl 2-methylbutanoate | C20H28O5

(3S,3aR,4S,4aR,7aR,8R,9aR)-3,4a,8-Trimethyl-2,5-dioxo-2,3,3a,4,4a,5,7a,8,9,9a-decahydroazuleno[6,5-b]furan-4-yl 2-methylbutanoate

  • Molecular FormulaC20H28O5
  • Average mass348.433 Da
  • Monoisotopic mass348.193665 Da
  • ChemSpider ID158619

  • defined stereocentres - 7 of 8 defined stereocentres

More details:

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

(3S,3aR,4S,4aR,7aR,8R,9aR)-3,4a,8-Trimethyl-2,5-dioxo-2,3,3a,4,4a,5,7a,8,9,9a-decahydroazuleno[6,5-b]furan-4-yl 2-methylbutanoate [ACD/IUPAC Name]
(3S,3aR,4S,4aR,7aR,8R,9aR)-3,4a,8-Trimethyl-2,5-dioxo-2,3,3a,4,4a,5,7a,8,9,9a-decahydroazuleno[6,5-b]furan-4-yl-2-methylbutanoat [German] [ACD/IUPAC Name]
2-Méthylbutanoate de (3S,3aR,4S,4aR,7aR,8R,9aR)-3,4a,8-triméthyl-2,5-dioxo-2,3,3a,4,4a,5,7a,8,9,9a-décahydroazuléno[6,5-b]furan-4-yle [French] [ACD/IUPAC Name]
Butanoic acid, 2-methyl-, (3S,3aR,4S,4aR,7aR,8R,9aR)-2,3,3a,4,4a,5,7a,8,9,9a-decahydro-3,4a,8-trimethyl-2,5-dioxoazuleno(6,5-b)furan-4-yl ester
Butanoic acid, 2-methyl-, (3S,3aR,4S,4aR,7aR,8R,9aR)-2,3,3a,4,4a,5,7a,8,9,9a-decahydro-3,4a,8-trimethyl-2,5-dioxoazuleno[6,5-b]furan-4-yl ester [ACD/Index Name]
63569-08-4 [RN]
Butanoic acid, 2-methyl-, 2,3,3a,4,4a,5,7a,8,9,9a-decahydro-3,4a,8-trimethyl-2,5-dioxoazuleno(6,5-b)furan-4-yl ester, stereoisomer
Microhelenin B

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

Density: 1.2±0.1 g/cm3
Boiling Point: 483.8±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: 210.9±28.8 °C
Index of Refraction: 1.522
Molar Refractivity: 92.1±0.4 cm3
#H bond acceptors: 5
#H bond donors: 0
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 2.63
ACD/LogD (pH 5.5): 2.35
ACD/BCF (pH 5.5): 36.25
ACD/KOC (pH 5.5): 454.76
ACD/LogD (pH 7.4): 2.35
ACD/BCF (pH 7.4): 36.25
ACD/KOC (pH 7.4): 454.76
Polar Surface Area: 70 Å2
Polarizability: 36.5±0.5 10-24cm3
Surface Tension: 41.9±5.0 dyne/cm
Molar Volume: 302.2±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) =  2.60

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  447.36  (Adapted Stein & Brown method)
    Melting Pt (deg C):  169.25  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.85E-008  (Modified Grain method)
    Subcooled liquid VP: 5.71E-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):  38.16
       log Kow used: 2.60 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.37392 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.49E-010  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.223E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.60  (KowWin est)
  Log Kaw used:  -7.736  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  10.336
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7529
   Biowin2 (Non-Linear Model)     :   0.9828
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.4750  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.6273  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6559
   Biowin6 (MITI Non-Linear Model):   0.1877
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.1144
 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):  7.61E-005 Pa (5.71E-007 mm Hg)
  Log Koa (Koawin est  ): 10.336
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0394 
       Octanol/air (Koa) model:  0.00532 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.587 
       Mackay model           :  0.759 
       Octanol/air (Koa) model:  0.299 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  84.8313 E-12 cm3/molecule-sec
      Half-Life =     0.126 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.513 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.137500 E-17 cm3/molecule-sec
      Half-Life =     1.007 Days (at 7E11 mol/cm3)
      Half-Life =     24.179 Hrs
   Fraction sorbed to airborne particulates (phi): 0.673 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  966.2
      Log Koc:  2.985 

 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 = 1.302 (BCF = 20.02)
       log Kow used: 2.60 (estimated)

 Volatilization from Water:
    Henry LC:  4.49E-010 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.434E+006  hours   (1.014E+005 days)
    Half-Life from Model Lake : 2.655E+007  hours   (1.106E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               3.41  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     3.31  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       0.00942         2.69         1000       
   Water     15.7            900          1000       
   Soil      84.2            1.8e+003     1000       
   Sediment  0.155           8.1e+003     0          
     Persistence Time: 1.6e+003 hr

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