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CAS Num: 007540-53-6


CHEM : Pentanoic acid, 3,7-dimethyl-6-octenyl ester

MOL FOR: C15 H28 O2

MOL WT : 240.39

------------------------------ EPI SUMMARY (v4.00) --------------------------

Physical Property Inputs:

Water Solubility (mg/L): ------

Vapor Pressure (mm Hg) : ------

Henry LC (atm-m3/mole) : ------

Log Kow (octanol-water): ------

Boiling Point (deg C) : ------

Melting Point (deg C) : ------

Log Octanol-Water Partition Coef (SRC):

Log Kow (KOWWIN v1.67 estimate) = 6.03

Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):

Boiling Pt (deg C): 287.89 (Adapted Stein & Brown method)

Melting Pt (deg C): 24.19 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.0037 (Modified Grain method)

VP (Pa, 25 deg C) : 0.494 (Modified Grain method)

Water Solubility Estimate from Log Kow (WSKOW v1.41):

Water Solubility at 25 deg C (mg/L): 0.1879

log Kow used: 6.03 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 0.80156 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:


Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:

Bond Method : 5.45E-003 atm-m3/mole (5.53E+002 Pa-m3/mole)

Group Method: 1.94E-003 atm-m3/mole (1.97E+002 Pa-m3/mole)

For Henry LC Comparison Purposes:

User-Entered Henry LC: not entered

Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:

HLC: 6.228E-003 atm-m3/mole (6.311E+002 Pa-m3/mole)

VP: 0.0037 mm Hg (source: MPBPVP)

WS: 0.188 mg/L (source: WSKOWWIN)

Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:

Log Kow used: 6.03 (KowWin est)

Log Kaw used: -0.652 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 6.682

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.9157

Biowin2 (Non-Linear Model) : 0.9960

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 3.1065 (weeks )

Biowin4 (Primary Survey Model) : 3.9989 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.6438

Biowin6 (MITI Non-Linear Model): 0.7398

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.3145

Ready Biodegradability Prediction: YES

Hydrocarbon Biodegradation (BioHCwin v1.01):

Structure incompatible with current estimation method!

Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:

Vapor pressure (liquid/subcooled): 0.493 Pa (0.0037 mm Hg)

Log Koa (Koawin est ): 6.682

Kp (particle/gas partition coef. (m3/ug)):

Mackay model : 6.08E-006

Octanol/air (Koa) model: 1.18E-006

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 0.00022

Mackay model : 0.000486

Octanol/air (Koa) model: 9.44E-005

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 99.1726 E-12 cm3/molecule-sec

Half-Life = 0.108 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 1.294 Hrs

Ozone Reaction:

OVERALL Ozone Rate Constant = 43.000000 E-17 cm3/molecule-sec

Half-Life = 0.027 Days (at 7E11 mol/cm3)

Half-Life = 38.378 Min

Reaction With Nitrate Radicals May Be Important!

Fraction sorbed to airborne particulates (phi):

0.000353 (Junge-Pankow, Mackay avg)

9.44E-005 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 3187 L/kg (MCI method)

Log Koc: 3.503 (MCI method)

Koc : 1.566E+004 L/kg (Kow method)

Log Koc: 4.195 (Kow method)

Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:

Total Kb for pH > 8 at 25 deg C : 5.317E-002 L/mol-sec

Kb Half-Life at pH 8: 150.863 days

Kb Half-Life at pH 7: 4.130 years

(Total Kb applies only to esters, carbmates, alkyl halides)

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 2.274 (BCF = 187.9 L/kg wet-wt)

Log Biotransformation Half-life (HL) = 0.0319 days (HL = 1.076 days)

Log BCF Arnot-Gobas method (upper trophic) = 2.566 (BCF = 368.1)

Log BAF Arnot-Gobas method (upper trophic) = 2.593 (BAF = 392)

log Kow used: 6.03 (estimated)

Volatilization from Water:

Henry LC: 0.00194 atm-m3/mole (estimated by Group SAR Method)

Half-Life from Model River: 2.05 hours

Half-Life from Model Lake : 152.4 hours (6.349 days)

Removal In Wastewater Treatment:

Total removal: 92.53 percent

Total biodegradation: 0.75 percent

Total sludge adsorption: 90.41 percent

Total to Air: 1.37 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.0964 0.513 1000

Water 17.2 360 1000

Soil 81 720 1000

Sediment 1.65 3.24e+003 0

Persistence Time: 385 hr

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