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CAS Number: 39537-23-0
SMILES : CC(C(=O)NC(CCC(=O)N)C(=O)O)N
CHEM : (2S)-5-amino-2-[[(2S)-2-aminopropanoyl]amino]-5-oxopentanoic acid
MOL FOR: C8 H15 N3 O4
MOL WT : 217.23
------------------------------ 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) = -2.76
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 512.41 (Adapted Stein & Brown method)
Melting Pt (deg C): 308.76 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 8.78E-012 (Modified Grain method)
VP (Pa, 25 deg C) : 1.17E-009 (Modified Grain method)
Subcooled liquid VP: 1.33E-008 mm Hg (25 deg C, Mod-Grain method)
: 1.77E-006 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 3.983e+005
log Kow used: -2.76 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1e+006 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Aliphatic Amines-acid
Amides -acid
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 4.21E-018 atm-m3/mole (4.27E-013 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: 6.301E-018 atm-m3/mole (6.384E-013 Pa-m3/mole)
VP: 8.78E-012 mm Hg (source: MPBPVP)
WS: 3.98E+005 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -2.76 (KowWin est)
Log Kaw used: -15.764 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 13.004
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.2909
Biowin2 (Non-Linear Model) : 0.9991
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9998 (weeks )
Biowin4 (Primary Survey Model) : 4.3740 (hours-days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5315
Biowin6 (MITI Non-Linear Model): 0.3906
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): -0.2949
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): 1.77E-006 Pa (1.33E-008 mm Hg)
Log Koa (Koawin est ): 13.004
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.69
Octanol/air (Koa) model: 2.48
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.984
Mackay model : 0.993
Octanol/air (Koa) model: 0.995
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 55.7615 E-12 cm3/molecule-sec
Half-Life = 0.192 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 2.302 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.988 (Junge-Pankow, Mackay avg)
0.995 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 10 L/kg (MCI method)
Log Koc: 1.000 (MCI method)
Koc : 0.03784 L/kg (Kow method)
Log Koc: -1.422 (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) = -3.4353 days (HL = 0.000367 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.893)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.893)
log Kow used: -2.76 (estimated)
Volatilization from Water:
Henry LC: 4.21E-018 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 2.05E+014 hours (8.54E+012 days)
Half-Life from Model Lake : 2.236E+015 hours (9.317E+013 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 1.44e-008 4.6 1000
Water 30.6 360 1000
Soil 69.4 720 1000
Sediment 0.0688 3.24e+003 0
Persistence Time: 640 hr