ChemSpider 2D Image | Methyl 17-methyloctadecanoate | C20H40O2

Methyl 17-methyloctadecanoate

  • Molecular FormulaC20H40O2
  • Average mass312.530 Da
  • Monoisotopic mass312.302826 Da
  • ChemSpider ID481873

More details:






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

17-methyl Stearic Acid methyl ester
17-Méthyloctadécanoate de méthyle [French] [ACD/IUPAC Name]
Methyl 17-methyloctadecanoate [ACD/IUPAC Name]
Methyl-17-methyloctadecanoat [German] [ACD/IUPAC Name]
Octadecanoic acid, 17-methyl-, methyl ester [ACD/Index Name]
[55124-97-5] [RN]
17-METHYLOCTADECANOIC ACID METHYL ESTER
17-methyl-octadecanoic acid, methyl ester
55124-97-5 [RN]
METHYL17-METHYLOCTADECANOATE
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

  • Gas Chromatography
    • Retention Index (Kovats):

      2112 (estimated with error: 47) NIST Spectra mainlib_14742, replib_336218
    • Retention Index (Normal Alkane):

      2174.9 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70 0C (0.5 min) ^ 20 0C/min -> 150 0C ^ 2 0C/min -> 270 0C; CAS no: 55124975; Active phase: SP-2100; Carrier gas: H2; Data type: Normal alkane RI; Authors: Gillan, F.T., Analysis of Complex Fatty Acid Methyl Ester Mixtures on Non-polar Capillary GC Columns, J. Chromatogr. Sci., 21, 1983, 293-297.) NIST Spectra nist ri

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

Density: 0.9±0.1 g/cm3
Boiling Point: 354.6±10.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.8 mmHg at 25°C
Enthalpy of Vaporization: 60.0±3.0 kJ/mol
Flash Point: 170.9±8.8 °C
Index of Refraction: 1.445
Molar Refractivity: 96.4±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 17
#Rule of 5 Violations: 1
ACD/LogP: 9.03
ACD/LogD (pH 5.5): 8.03
ACD/BCF (pH 5.5): 750198.94
ACD/KOC (pH 5.5): 558497.44
ACD/LogD (pH 7.4): 8.03
ACD/BCF (pH 7.4): 750198.94
ACD/KOC (pH 7.4): 558497.44
Polar Surface Area: 26 Å2
Polarizability: 38.2±0.5 10-24cm3
Surface Tension: 30.2±3.0 dyne/cm
Molar Volume: 362.5±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) =  8.65

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  353.60  (Adapted Stein & Brown method)
    Melting Pt (deg C):  81.07  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.16E-005  (Modified Grain method)
    Subcooled liquid VP: 0.000108 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):  0.0004265
       log Kow used: 8.65 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.0005919 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.17E-002  atm-m3/mole
   Group Method:   4.99E-002  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  3.047E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  8.65  (KowWin est)
  Log Kaw used:  -0.052  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.702
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7729
   Biowin2 (Non-Linear Model)     :   0.9340
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6487  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.6258  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.8179
   Biowin6 (MITI Non-Linear Model):   0.9129
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.9932
 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):  0.0144 Pa (0.000108 mm Hg)
  Log Koa (Koawin est  ): 8.702
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000208 
       Octanol/air (Koa) model:  0.000124 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00747 
       Mackay model           :  0.0164 
       Octanol/air (Koa) model:  0.00979 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  23.0772 E-12 cm3/molecule-sec
      Half-Life =     0.463 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     5.562 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0119 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  9.654E+004
      Log Koc:  4.985 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  3.016E-002  L/mol-sec
  Kb Half-Life at pH 8:     266.000  days   
  Kb Half-Life at pH 7:       7.283  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 1.052 (BCF = 11.27)
       log Kow used: 8.65 (estimated)

 Volatilization from Water:
    Henry LC:  0.0499 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      1.825  hours
    Half-Life from Model Lake :      168.1  hours   (7.006 days)

 Removal In Wastewater Treatment:
    Total removal:              94.04  percent
    Total biodegradation:        0.78  percent
    Total sludge adsorption:    93.18  percent
    Total to Air:                0.08  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.149           11.1         1000       
   Water     1.9             900          1000       
   Soil      28              1.8e+003     1000       
   Sediment  69.9            8.1e+003     0          
     Persistence Time: 3.1e+003 hr




                    

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