ChemSpider 2D Image | 6-Methyl-4,5-dihydrocyclopenta[hi]chrysene | C21H16

6-Methyl-4,5-dihydrocyclopenta[hi]chrysene

  • Molecular FormulaC21H16
  • Average mass268.352 Da
  • Monoisotopic mass268.125214 Da
  • ChemSpider ID111516

More details:

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

6-Methyl-4,5-dihydrocyclopenta[hi]chrysen [German] [ACD/IUPAC Name]
6-Methyl-4,5-dihydrocyclopenta[hi]chrysene [ACD/IUPAC Name]
6-Méthyl-4,5-dihydrocyclopenta[hi]chrysène [French] [ACD/IUPAC Name]
Cyclopenta(hi)chrysene, 4,5-dihydro-6-methyl-
Cyclopenta[hi]chrysene, 4,5-dihydro-6-methyl- [ACD/Index Name]
128941-62-8 [RN]
6,7-Cyclopentano-5-methylchrysene
6,7-Cyp-5-mec
Cyclopenta[hi]chrysene,10,11-dihydro-12-methyl-

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

Density: 1.2±0.1 g/cm3
Boiling Point: 506.4±30.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Enthalpy of Vaporization: 74.7±0.8 kJ/mol
Flash Point: 253.2±18.7 °C
Index of Refraction: 1.781
Molar Refractivity: 92.2±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 1
ACD/LogP: 7.11
ACD/LogD (pH 5.5): 6.69
ACD/BCF (pH 5.5): 71862.77
ACD/KOC (pH 5.5): 104199.51
ACD/LogD (pH 7.4): 6.69
ACD/BCF (pH 7.4): 71862.77
ACD/KOC (pH 7.4): 104199.51
Polar Surface Area: 0 Å2
Polarizability: 36.5±0.5 10-24cm3
Surface Tension: 56.9±3.0 dyne/cm
Molar Volume: 219.4±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) =  7.05

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  438.26  (Adapted Stein & Brown method)
    Melting Pt (deg C):  167.01  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.3E-008  (Modified Grain method)
    Subcooled liquid VP: 9.6E-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):  0.00138
       log Kow used: 7.05 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.00064959 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.97E-006  atm-m3/mole
   Group Method:   3.01E-007  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  8.444E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  7.05  (KowWin est)
  Log Kaw used:  -3.916  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  10.966
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.1265
   Biowin2 (Non-Linear Model)     :   0.0001
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.5822  (recalcitrant)
   Biowin4 (Primary Survey Model) :   2.5527  (weeks-months)
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.0822
   Biowin6 (MITI Non-Linear Model):   0.0166
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.6381
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   2.3913
     BioHC Half-Life (days)     : 246.2261

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.000128 Pa (9.6E-007 mm Hg)
  Log Koa (Koawin est  ): 10.966
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0234 
       Octanol/air (Koa) model:  0.0227 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.458 
       Mackay model           :  0.652 
       Octanol/air (Koa) model:  0.645 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 201.6065 E-12 cm3/molecule-sec
      Half-Life =     0.053 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.637 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.555 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.328E+006
      Log Koc:  6.123 

 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 = 4.741 (BCF = 5.506e+004)
       log Kow used: 7.05 (estimated)

 Volatilization from Water:
    Henry LC:  3.01E-007 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:       3188  hours   (132.8 days)
    Half-Life from Model Lake : 3.492E+004  hours   (1455 days)

 Removal In Wastewater Treatment:
    Total removal:              93.87  percent
    Total biodegradation:        0.78  percent
    Total sludge adsorption:    93.09  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       0.00551         1.27         1000       
   Water     0.831           4.32e+003    1000       
   Soil      40.6            8.64e+003    1000       
   Sediment  58.6            3.89e+004    0          
     Persistence Time: 1.05e+004 hr

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