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CAS Number: 23012-25-1

SMILES : Cc1c(oc(n1)C)C(=O)C

CHEM : 1-(2,4-dimethyl-1,3-oxazol-5-yl)ethanone

MOL FOR: C7 H9 N1 O2

MOL WT : 139.16

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

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 v1.67 estimate) = 0.74

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

Boiling Pt (deg C): 204.47 (Adapted Stein & Brown method)

Melting Pt (deg C): 28.73 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.245 (Modified Grain method)

VP (Pa, 25 deg C) : 32.7 (Modified Grain method)

Subcooled liquid VP: 0.265 mm Hg (25 deg C, Mod-Grain method)

: 35.3 Pa (25 deg C, Mod-Grain method)

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

Water Solubility at 25 deg C (mg/L): 1.962e+004

log Kow used: 0.74 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 50430 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Neutral Organics

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

Bond Method : 1.56E-008 atm-m3/mole (1.58E-003 Pa-m3/mole)

Group Method: Incomplete

For Henry LC Comparison Purposes:

User-Entered Henry LC: not entered

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

HLC: 2.286E-006 atm-m3/mole (2.317E-001 Pa-m3/mole)

VP: 0.245 mm Hg (source: MPBPVP)

WS: 1.96E+004 mg/L (source: WSKOWWIN)

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

Log Kow used: 0.74 (KowWin est)

Log Kaw used: -6.195 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 6.935

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.7975

Biowin2 (Non-Linear Model) : 0.8499

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.7195 (weeks-months)

Biowin4 (Primary Survey Model) : 3.4877 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.4992

Biowin6 (MITI Non-Linear Model): 0.4939

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): -0.3789

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): 35.3 Pa (0.265 mm Hg)

Log Koa (Koawin est ): 6.935

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

Mackay model : 8.49E-008

Octanol/air (Koa) model: 2.11E-006

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 3.07E-006

Mackay model : 6.79E-006

Octanol/air (Koa) model: 0.000169

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 9.4740 E-12 cm3/molecule-sec

Half-Life = 1.129 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 13.548 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

4.93E-006 (Junge-Pankow, Mackay avg)

0.000169 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 74.73 L/kg (MCI method)

Log Koc: 1.873 (MCI method)

Koc : 33.89 L/kg (Kow method)

Log Koc: 1.530 (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 = 0.500 (BCF = 3.162 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -1.4190 days (HL = 0.03811 days)

Log BCF Arnot-Gobas method (upper trophic) = 0.094 (BCF = 1.242)

Log BAF Arnot-Gobas method (upper trophic) = 0.094 (BAF = 1.242)

log Kow used: 0.74 (estimated)

Volatilization from Water:

Henry LC: 1.56E-008 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 4.427E+004 hours (1845 days)

Half-Life from Model Lake : 4.831E+005 hours (2.013E+004 days)

Removal In Wastewater Treatment:

Total removal: 1.87 percent

Total biodegradation: 0.09 percent

Total sludge adsorption: 1.78 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 0.121 27.1 1000

Water 19.7 900 1000

Soil 80.1 1.8e+003 1000

Sediment 0.108 8.1e+003 0

Persistence Time: 1.43e+003 hr

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