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CAS Number: 868-59-7
SMILES : SCC(N(H)(H)(H)CL)C(=O)OCC
CHEM : L-CYSTEINE, ETHYL ESTER, HYDROCHLORIDE
MOL FOR: C5 H12 CL1 N1 O2 S1
MOL WT : 185.67
------------------------------ EPI SUMMARY (v4.10) --------------------------
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 v1.68 estimate) = -2.18
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 400.05 (Adapted Stein & Brown method)
Melting Pt (deg C): 157.28 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 8.78E-007 (Modified Grain method)
VP (Pa, 25 deg C) : 0.000117 (Modified Grain method)
MP (exp database): 123-125 deg C
Subcooled liquid VP: 8.29E-006 mm Hg (25 deg C, Mod-Grain method)
: 0.00111 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -2.18 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 6063 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Thiols and Mercaptans
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 2.09E-015 atm-m3/mole (2.11E-010 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: 2.145E-013 atm-m3/mole (2.173E-008 Pa-m3/mole)
VP: 8.78E-007 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -2.18 (KowWin est)
Log Kaw used: -13.068 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 10.888
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8333
Biowin2 (Non-Linear Model) : 0.9885
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9291 (weeks )
Biowin4 (Primary Survey Model) : 3.8088 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5428
Biowin6 (MITI Non-Linear Model): 0.6560
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.3768
Ready Biodegradability Prediction: YES
Hydrocarbon Biodegradation (BioHCwin v1.01):
Structure incompatible with current estimation method!
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 0.00111 Pa (8.29E-006 mm Hg)
Log Koa (Koawin est ): 10.888
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.00271
Octanol/air (Koa) model: 0.019
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.0893
Mackay model : 0.178
Octanol/air (Koa) model: 0.603
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 50.0019 E-12 cm3/molecule-sec
Half-Life = 0.214 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 2.567 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.134 (Junge-Pankow, Mackay avg)
0.603 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 37.14 L/kg (MCI method)
Log Koc: 1.570 (MCI method)
Koc : 0.4284 L/kg (Kow method)
Log Koc: -0.368 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 4.371E-002 L/mol-sec
Kb Half-Life at pH 8: 183.520 days
Kb Half-Life at pH 7: 5.024 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.01):
Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -3.3417 days (HL = 0.0004553 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.8931)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.8931)
log Kow used: -2.18 (estimated)
Volatilization from Water:
Henry LC: 2.09E-015 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 3.817E+011 hours (1.59E+010 days)
Half-Life from Model Lake : 4.164E+012 hours (1.735E+011 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.75 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 4.25e-008 5.13 1000
Water 23.3 360 1000
Soil 76.6 720 1000
Sediment 0.0785 3.24e+003 0
Persistence Time: 705 hr