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CAS Number: 133860-42-1
SMILES : Cc1cc(O)c(s1)C(=O)C
CHEM : 1-(3-hydroxy-5-methylthiophen-2-yl)ethanone
MOL FOR: C7 H8 O2 S1
MOL WT : 156.20
------------------------------ 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) = 1.56
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 272.23 (Adapted Stein & Brown method)
Melting Pt (deg C): 78.04 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.001 (Modified Grain method)
VP (Pa, 25 deg C) : 0.133 (Modified Grain method)
Subcooled liquid VP: 0.00319 mm Hg (25 deg C, Mod-Grain method)
: 0.426 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 3308
log Kow used: 1.56 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1.6924e+005 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Phenols
Thiophenes
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 6.12E-010 atm-m3/mole (6.20E-005 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: 6.213E-008 atm-m3/mole (6.295E-003 Pa-m3/mole)
VP: 0.001 mm Hg (source: MPBPVP)
WS: 3.31E+003 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.56 (KowWin est)
Log Kaw used: -7.602 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 9.162
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8505
Biowin2 (Non-Linear Model) : 0.8610
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8130 (weeks )
Biowin4 (Primary Survey Model) : 3.5713 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4795
Biowin6 (MITI Non-Linear Model): 0.4465
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): -0.0219
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): 0.425 Pa (0.00319 mm Hg)
Log Koa (Koawin est ): 9.162
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 7.05E-006
Octanol/air (Koa) model: 0.000356
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.000255
Mackay model : 0.000564
Octanol/air (Koa) model: 0.0277
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 200.3780 E-12 cm3/molecule-sec
Half-Life = 0.053 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.641 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
0.000409 (Junge-Pankow, Mackay avg)
0.0277 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 59.82 L/kg (MCI method)
Log Koc: 1.777 (MCI method)
Koc : 141.4 L/kg (Kow method)
Log Koc: 2.150 (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 = 0.112 (BCF = 1.294 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -1.8654 days (HL = 0.01363 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.302 (BCF = 2.005)
Log BAF Arnot-Gobas method (upper trophic) = 0.302 (BAF = 2.005)
log Kow used: 1.56 (estimated)
Volatilization from Water:
Henry LC: 6.12E-010 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.196E+006 hours (4.982E+004 days)
Half-Life from Model Lake : 1.304E+007 hours (5.435E+005 days)
Removal In Wastewater Treatment:
Total removal: 1.99 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.90 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 0.0106 1.28 1000
Water 21.8 360 1000
Soil 78.1 720 1000
Sediment 0.0933 3.24e+003 0
Persistence Time: 691 hr