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CAS Number: 2224-02-4
SMILES : C1C(CSS1)C(=O)O
CHEM : dithiolane-4-carboxylic acid
MOL FOR: C4 H6 O2 S2
MOL WT : 150.21
------------------------------ 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) = 1.43
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 276.63 (Adapted Stein & Brown method)
Melting Pt (deg C): 82.92 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00187 (Modified Grain method)
VP (Pa, 25 deg C) : 0.249 (Modified Grain method)
Subcooled liquid VP: 0.00669 mm Hg (25 deg C, Mod-Grain method)
: 0.892 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1.123e+004
log Kow used: 1.43 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 19649 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics-acid
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 5.28E-009 atm-m3/mole (5.35E-004 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: 3.291E-008 atm-m3/mole (3.335E-003 Pa-m3/mole)
VP: 0.00187 mm Hg (source: MPBPVP)
WS: 1.12E+004 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.43 (KowWin est)
Log Kaw used: -6.666 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 8.096
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7487
Biowin2 (Non-Linear Model) : 0.8204
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.2318 (weeks )
Biowin4 (Primary Survey Model) : 4.0166 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4983
Biowin6 (MITI Non-Linear Model): 0.4176
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8223
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): 0.892 Pa (0.00669 mm Hg)
Log Koa (Koawin est ): 8.096
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 3.36E-006
Octanol/air (Koa) model: 3.06E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.000121
Mackay model : 0.000269
Octanol/air (Koa) model: 0.00244
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 238.3986 E-12 cm3/molecule-sec
Half-Life = 0.045 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.538 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.000195 (Junge-Pankow, Mackay avg)
0.00244 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 9.083 L/kg (MCI method)
Log Koc: 0.958 (MCI method)
Koc : 8.845 L/kg (Kow method)
Log Koc: 0.947 (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) = -0.8965 days (HL = 0.1269 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.507 (BCF = 3.21)
Log BAF Arnot-Gobas method (upper trophic) = 0.507 (BAF = 3.21)
log Kow used: 1.43 (estimated)
Volatilization from Water:
Henry LC: 5.28E-009 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.359E+005 hours (5663 days)
Half-Life from Model Lake : 1.483E+006 hours (6.178E+004 days)
Removal In Wastewater Treatment:
Total removal: 1.95 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.86 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 0.0616 1.08 1000
Water 35.1 360 1000
Soil 64.8 720 1000
Sediment 0.0776 3.24e+003 0
Persistence Time: 487 hr