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CAS Number: 59021-05-5

SMILES : o(c(cc1)CSCc(nccn2)c2)c1

CHEM : Pyrazine, (2-furanylmethyl)thio methyl -

MOL FOR: C10 H10 N2 O1 S1

MOL WT : 206.26

------------------------------ 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) = 1.65

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

Boiling Pt (deg C): 315.32 (Adapted Stein & Brown method)

Melting Pt (deg C): 100.08 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.00016 (Modified Grain method)

VP (Pa, 25 deg C) : 0.0214 (Modified Grain method)

Subcooled liquid VP: 0.000862 mm Hg (25 deg C, Mod-Grain method)

: 0.115 Pa (25 deg C, Mod-Grain method)

Water Solubility Estimate from Log Kow (WSKOW v1.42):

Water Solubility at 25 deg C (mg/L): 1579

log Kow used: 1.65 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 3868.6 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Neutral Organics

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

Bond Method : 2.77E-009 atm-m3/mole (2.80E-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: 2.750E-008 atm-m3/mole (2.786E-003 Pa-m3/mole)

VP: 0.00016 mm Hg (source: MPBPVP)

WS: 1.58E+003 mg/L (source: WSKOWWIN)

Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:

Log Kow used: 1.65 (KowWin est)

Log Kaw used: -6.946 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 8.596

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.6493

Biowin2 (Non-Linear Model) : 0.5199

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.7434 (weeks-months)

Biowin4 (Primary Survey Model) : 3.5501 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.0364

Biowin6 (MITI Non-Linear Model): 0.0494

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.2488

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): 0.115 Pa (0.000862 mm Hg)

Log Koa (Koawin est ): 8.596

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

Mackay model : 2.61E-005

Octanol/air (Koa) model: 9.68E-005

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 0.000942

Mackay model : 0.00208

Octanol/air (Koa) model: 0.00769

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 117.4783 E-12 cm3/molecule-sec

Half-Life = 0.091 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 1.093 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Reaction With Nitrate Radicals May Be Important!

Fraction sorbed to airborne particulates (phi):

0.00151 (Junge-Pankow, Mackay avg)

0.00769 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 4228 L/kg (MCI method)

Log Koc: 3.626 (MCI method)

Koc : 172.3 L/kg (Kow method)

Log Koc: 2.236 (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 = 0.757 (BCF = 5.711 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.9902 days (HL = 0.1023 days)

Log BCF Arnot-Gobas method (upper trophic) = 0.647 (BCF = 4.435)

Log BAF Arnot-Gobas method (upper trophic) = 0.647 (BAF = 4.435)

log Kow used: 1.65 (estimated)

Volatilization from Water:

Henry LC: 2.77E-009 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 3.036E+005 hours (1.265E+004 days)

Half-Life from Model Lake : 3.312E+006 hours (1.38E+005 days)

Removal In Wastewater Treatment:

Total removal: 2.03 percent

Total biodegradation: 0.09 percent

Total sludge adsorption: 1.93 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 0.0164 2.19 1000

Water 12 900 1000

Soil 85.1 1.8e+003 1000

Sediment 2.92 8.1e+003 0

Persistence Time: 1.68e+003 hr

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