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CAS Num: 004179-19-5

SMILES : O(c(cc(OC)cc1C)c1)C

CHEM : Benzene, 1,3-dimethoxy-5-methyl-

MOL FOR: C9 H12 O2

MOL WT : 152.19

------------------------------ 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) = 2.70

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

Boiling Pt (deg C): 212.13 (Adapted Stein & Brown method)

Melting Pt (deg C): 12.07 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.0375 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 5 (Mean VP of Antoine & Grain methods)

BP (exp database): 244 deg C

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

Water Solubility at 25 deg C (mg/L): 365.5

log Kow used: 2.70 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 172.3 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Neutral Organics

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

Bond Method : 2.08E-005 atm-m3/mole (2.11E+000 Pa-m3/mole)

Group Method: 3.79E-003 atm-m3/mole (3.84E+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: 2.055E-005 atm-m3/mole (2.082E+000 Pa-m3/mole)

VP: 0.0375 mm Hg (source: MPBPVP)

WS: 366 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.70 (KowWin est)

Log Kaw used: -3.070 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 5.770

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.9936

Biowin2 (Non-Linear Model) : 0.9973

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.6718 (weeks-months)

Biowin4 (Primary Survey Model) : 3.7139 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.7168

Biowin6 (MITI Non-Linear Model): 0.8152

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.3749

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): 4.83 Pa (0.0362 mm Hg)

Log Koa (Koawin est ): 5.770

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

Mackay model : 6.22E-007

Octanol/air (Koa) model: 1.45E-007

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 2.24E-005

Mackay model : 4.97E-005

Octanol/air (Koa) model: 1.16E-005

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 201.7952 E-12 cm3/molecule-sec

Half-Life = 0.053 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 0.636 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

3.61E-005 (Junge-Pankow, Mackay avg)

1.16E-005 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 96.03 L/kg (MCI method)

Log Koc: 1.982 (MCI method)

Koc : 339.1 L/kg (Kow method)

Log Koc: 2.530 (Kow method)

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

Rate constants can NOT be estimated for this structure!

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 1.450 (BCF = 28.17 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.2831 days (HL = 0.521 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.630 (BCF = 42.61)

Log BAF Arnot-Gobas method (upper trophic) = 1.630 (BAF = 42.61)

log Kow used: 2.70 (estimated)

Volatilization from Water:

Henry LC: 0.00379 atm-m3/mole (estimated by Group SAR Method)

Half-Life from Model River: 1.449 hours

Half-Life from Model Lake : 119.3 hours (4.969 days)

Removal In Wastewater Treatment:

Total removal: 60.93 percent

Total biodegradation: 0.06 percent

Total sludge adsorption: 2.33 percent

Total to Air: 58.54 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 1.1 1.27 1000

Water 60.1 900 1000

Soil 38.4 1.8e+003 1000

Sediment 0.393 8.1e+003 0

Persistence Time: 137 hr

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