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Search term: MF = 'C_{20}H_{28}O_{3}'

ChemSpider 2D Image | (+)-pisiferic acid | C20H28O3

(+)-pisiferic acid

  • Molecular FormulaC20H28O3
  • Average mass316.435 Da
  • Monoisotopic mass316.203857 Da
  • ChemSpider ID142446
  • defined stereocentres - 2 of 2 defined stereocentres


More details:






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

(+)-pisiferic acid
12-Hydroxyabieta-8,11,13-trien-20-oic acid [ACD/IUPAC Name]
12-Hydroxyabieta-8,11,13-trien-20-säure [German] [ACD/IUPAC Name]
4a(2H)-Phenanthrenecarboxylic acid, 1,3,4,9,10,10a-hexahydro-6-hydroxy-1,1-dimethyl-7-(1-methylethyl)-, (4aR,10aS)- [ACD/Index Name]
Acide 12-hydroxyabiéta-8,11,13-trién-20-oïque [French] [ACD/IUPAC Name]
pisiferic acid
(4aR,10aS)-6-hydroxy-1,1-dimethyl-7-propan-2-yl-2,3,4,9,10,10a-hexahydrophenanthrene-4a-carboxylic acid
[67494-15-9]
4a(2H)-Phenanthrenecarboxylic acid, 1,3,4,9,10,10a-tetrahydro-6-hydroxy-1,1-dimethyl-7-(1-methylethyl)-, (4ar-trans)-
67494-15-9 [RN]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

C09163 [DBID]

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

Density: 1.1±0.1 g/cm3
Boiling Point: 470.0±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.2 mmHg at 25°C
Enthalpy of Vaporization: 77.2±3.0 kJ/mol
Flash Point: 252.2±25.2 °C
Index of Refraction: 1.558
Molar Refractivity: 90.9±0.3 cm3
#H bond acceptors: 3
#H bond donors: 2
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 1
ACD/LogP: 5.53
ACD/LogD (pH 5.5): 4.24
ACD/BCF (pH 5.5): 485.45
ACD/KOC (pH 5.5): 1268.83
ACD/LogD (pH 7.4): 2.46
ACD/BCF (pH 7.4): 8.04
ACD/KOC (pH 7.4): 21.00
Polar Surface Area: 58 Å2
Polarizability: 36.0±0.5 10-24cm3
Surface Tension: 44.3±3.0 dyne/cm
Molar Volume: 282.2±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) =  5.68

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  438.08  (Adapted Stein & Brown method)
    Melting Pt (deg C):  183.67  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.77E-009  (Modified Grain method)
    Subcooled liquid VP: 1.7E-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):  1.32
       log Kow used: 5.68 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.0322 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.85E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.189E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  5.68  (KowWin est)
  Log Kaw used:  -9.121  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.801
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5269
   Biowin2 (Non-Linear Model)     :   0.0975
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3469  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3725  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1953
   Biowin6 (MITI Non-Linear Model):   0.0514
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.7178
 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):  2.27E-005 Pa (1.7E-007 mm Hg)
  Log Koa (Koawin est  ): 14.801
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.132 
       Octanol/air (Koa) model:  155 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.827 
       Mackay model           :  0.914 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 121.3267 E-12 cm3/molecule-sec
      Half-Life =     0.088 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.058 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.87 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  3.635E+004
      Log Koc:  4.561 

 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 = 0.750 (BCF = 5.623)
       log Kow used: 5.68 (estimated)

 Volatilization from Water:
    Henry LC:  1.85E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:  5.63E+007  hours   (2.346E+006 days)
    Half-Life from Model Lake : 6.142E+008  hours   (2.559E+007 days)

 Removal In Wastewater Treatment:
    Total removal:              90.17  percent
    Total biodegradation:        0.76  percent
    Total sludge adsorption:    89.41  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       0.00062         2.12         1000       
   Water     4.56            900          1000       
   Soil      54.9            1.8e+003     1000       
   Sediment  40.5            8.1e+003     0          
     Persistence Time: 2.97e+003 hr




                    

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