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CAS Number: 78491-02-8

SMILES : O=C(NCO)N(C1N(C(=O)N(C1(=O))CO)CO)CO

CHEM : Urea, N-[1,3-bis(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]-N,N -bis(

hydroxymethyl)-

MOL FOR: C8 H14 N4 O7

MOL WT : 278.22

------------------------------ EPI SUMMARY (v4.10) --------------------------

Henry LC (atm-m3/mole) : ------

Log Kow (octanol-water): ------

Boiling Point (deg C) : ------

Water Solubility (mg/L): ------

Physical Property Inputs:

Vapor Pressure (mm Hg) : ------

Melting Point (deg C) : ------

Log Octanol-Water Partition Coef (SRC):

Log Kow (KOWWIN v1.68 estimate) = -7.49

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

Boiling Pt (deg C): 611.33 (Adapted Stein & Brown method)

Melting Pt (deg C): 264.60 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 8.46E-018 (Modified Grain method)

VP (Pa, 25 deg C) : 1.13E-015 (Modified Grain method)

Subcooled liquid VP: 3.58E-015 mm Hg (25 deg C, Mod-Grain method)

: 4.77E-013 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: -7.49 (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:

Imides

Substituted Ureas

Amides

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

Bond Method : 2.24E-020 atm-m3/mole (2.27E-015 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: 3.097E-024 atm-m3/mole (3.138E-019 Pa-m3/mole)

VP: 8.46E-018 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: -7.49 (KowWin est)

Log Kaw used: -18.038 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 10.548

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 1.2500

Biowin2 (Non-Linear Model) : 0.9715

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 3.2242 (weeks )

Biowin4 (Primary Survey Model) : 3.9641 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.7391

Biowin6 (MITI Non-Linear Model): 0.5247

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 1.5105

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): 4.77E-013 Pa (3.58E-015 mm Hg)

Log Koa (Koawin est ): 10.548

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

Mackay model : 6.28E+006

Octanol/air (Koa) model: 0.00867

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 1

Mackay model : 1

Octanol/air (Koa) model: 0.41

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 73.8251 E-12 cm3/molecule-sec

Half-Life = 0.145 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 1.739 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

1 (Junge-Pankow, Mackay avg)

0.41 (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 : 6.372E-005 L/kg (Kow method)

Log Koc: -4.196 (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 v3.01):

Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -7.1997 days (HL = 6.313e-008 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: -7.49 (estimated)

Volatilization from Water:

Henry LC: 2.24E-020 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 4.36E+016 hours (1.817E+015 days)

Half-Life from Model Lake : 4.756E+017 hours (1.982E+016 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 0.000217 3.48 1000

Water 30.6 360 1000

Soil 69.4 720 1000

Sediment 0.0688 3.24e+003 0

Persistence Time: 640 hr

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