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CAS Number: 99-36-5

SMILES : O=C(OC)c(cccc1C)c1

CHEM : Benzoic acid, 3-methyl-, methyl ester

MOL FOR: C9 H10 O2

MOL WT : 150.18

------------------------------ EPI SUMMARY (v4.11) --------------------------

Physical Property Inputs:

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

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

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

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

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

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

Log Octanol-Water Partition Coef (SRC):

Log Kow (KOWWIN v1.68 estimate) = 2.38

Log Kow (Exper. database match) = 2.77

Exper. Ref: SOTOMATSU,T ET AL. (1993)

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

Boiling Pt (deg C): 215.56 (Adapted Stein & Brown method)

Melting Pt (deg C): 5.75 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.125 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 16.6 (Mean VP of Antoine & Grain methods)

BP (exp database): 221 deg C

Water Solubility Estimate from Log Kow (WSKOW v1.42):

Water Solubility at 25 deg C (mg/L): 326.4

log Kow used: 2.77 (expkow database)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 1149.5 mg/L

ECOSAR Class Program (ECOSAR v1.11):

Class(es) found:

Esters

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

Bond Method : 3.83E-005 atm-m3/mole (3.88E+000 Pa-m3/mole)

Group Method: 1.94E-005 atm-m3/mole (1.97E+000 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: 7.568E-005 atm-m3/mole (7.668E+000 Pa-m3/mole)

VP: 0.125 mm Hg (source: MPBPVP)

WS: 326 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.77 (exp database)

Log Kaw used: -2.805 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 5.575

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.9049

Biowin2 (Non-Linear Model) : 0.9961

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.9327 (weeks )

Biowin4 (Primary Survey Model) : 3.7915 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.6838

Biowin6 (MITI Non-Linear Model): 0.8090

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.1749

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): 15.5 Pa (0.116 mm Hg)

Log Koa (Koawin est ): 5.575

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

Mackay model : 1.94E-007

Octanol/air (Koa) model: 9.23E-008

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 7.01E-006

Mackay model : 1.55E-005

Octanol/air (Koa) model: 7.38E-006

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 1.4794 E-12 cm3/molecule-sec

Half-Life = 7.230 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 86.757 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

1.13E-005 (Junge-Pankow, Mackay avg)

7.38E-006 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 107.8 L/kg (MCI method)

Log Koc: 2.033 (MCI method)

Koc : 246.4 L/kg (Kow method)

Log Koc: 2.392 (Kow method)

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

Total Kb for pH > 8 at 25 deg C : 2.991E-002 L/mol-sec

Kb Half-Life at pH 8: 268.214 days

Kb Half-Life at pH 7: 7.343 years

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

Bioaccumulation Estimates (BCFBAF v3.01):

Log BCF from regression-based method = 1.495 (BCF = 31.24 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.8576 days (HL = 0.1388 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.462 (BCF = 28.98)

Log BAF Arnot-Gobas method (upper trophic) = 1.462 (BAF = 28.98)

log Kow used: 2.77 (expkow database)

Volatilization from Water:

Henry LC: 1.94E-005 atm-m3/mole (estimated by Group SAR Method)

Half-Life from Model River: 38.23 hours (1.593 days)

Half-Life from Model Lake : 519.9 hours (21.66 days)

Removal In Wastewater Treatment:

Total removal: 5.16 percent

Total biodegradation: 0.11 percent

Total sludge adsorption: 4.01 percent

Total to Air: 1.04 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 5.57 174 1000

Water 26.4 360 1000

Soil 67.9 720 1000

Sediment 0.162 3.24e+003 0

Persistence Time: 454 hr

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