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CAS Num: 055764-25-5

SMILES : O=C(Sc(cco1)c1C)C

CHEM : Ethanethioic acid, S-(2-methyl-3-furanyl) ester

MOL FOR: C7 H8 O2 S1

MOL WT : 156.20

------------------------------ 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) = 2.11

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

Boiling Pt (deg C): 231.13 (Adapted Stein & Brown method)

Melting Pt (deg C): 34.69 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.057 (Modified Grain method)

VP (Pa, 25 deg C) : 7.6 (Modified Grain method)

Subcooled liquid VP: 0.0696 mm Hg (25 deg C, Mod-Grain method)

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

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

Water Solubility at 25 deg C (mg/L): 1122

log Kow used: 2.11 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 3806.8 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:


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

Bond Method : 1.37E-005 atm-m3/mole (1.39E+000 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: 1.044E-005 atm-m3/mole (1.058E+000 Pa-m3/mole)

VP: 0.057 mm Hg (source: MPBPVP)

WS: 1.12E+003 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.11 (KowWin est)

Log Kaw used: -3.252 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 5.362

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.7279

Biowin2 (Non-Linear Model) : 0.7970

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.7791 (weeks )

Biowin4 (Primary Survey Model) : 3.5538 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.3058

Biowin6 (MITI Non-Linear Model): 0.1952

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.1939

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): 9.28 Pa (0.0696 mm Hg)

Log Koa (Koawin est ): 5.362

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

Mackay model : 3.23E-007

Octanol/air (Koa) model: 5.65E-008

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 1.17E-005

Mackay model : 2.59E-005

Octanol/air (Koa) model: 4.52E-006

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 32.4912 E-12 cm3/molecule-sec

Half-Life = 0.329 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 3.950 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Reaction With Nitrate Radicals May Be Important!

Fraction sorbed to airborne particulates (phi):

1.88E-005 (Junge-Pankow, Mackay avg)

4.52E-006 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 27.82 L/kg (MCI method)

Log Koc: 1.444 (MCI method)

Koc : 72.93 L/kg (Kow method)

Log Koc: 1.863 (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 = 1.060 (BCF = 11.47 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.7772 days (HL = 0.167 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.048 (BCF = 11.17)

Log BAF Arnot-Gobas method (upper trophic) = 1.048 (BAF = 11.17)

log Kow used: 2.11 (estimated)

Volatilization from Water:

Henry LC: 1.37E-005 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 54.69 hours (2.279 days)

Half-Life from Model Lake : 701.4 hours (29.22 days)

Removal In Wastewater Treatment:

Total removal: 3.10 percent

Total biodegradation: 0.10 percent

Total sludge adsorption: 2.25 percent

Total to Air: 0.76 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.994 7.9 1000

Water 33.9 360 1000

Soil 65 720 1000

Sediment 0.101 3.24e+003 0

Persistence Time: 386 hr

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