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CAS Number: 131-54-4

SMILES : O=C(c(c(O)cc(OC)c1)c1)c(c(O)cc(OC)c2)c2

CHEM : Methanone, bis(2-hydroxy-4-methoxyphenyl)-

MOL FOR: C15 H14 O5

MOL WT : 274.28

------------------------------ 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) = 3.90

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

Boiling Pt (deg C): 421.90 (Adapted Stein & Brown method)

Melting Pt (deg C): 176.11 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 7.37E-009 (Modified Grain method)

VP (Pa, 25 deg C) : 9.82E-007 (Modified Grain method)

MP (exp database): 139.5 deg C

Subcooled liquid VP: 1.05E-007 mm Hg (25 deg C, Mod-Grain method)

: 1.4E-005 Pa (25 deg C, Mod-Grain method)

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

Water Solubility at 25 deg C (mg/L): 30.53

log Kow used: 3.90 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 7500 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Phenols, Poly

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

Bond Method : 1.17E-010 atm-m3/mole (1.18E-005 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: 8.712E-011 atm-m3/mole (8.828E-006 Pa-m3/mole)

VP: 7.37E-009 mm Hg (source: MPBPVP)

WS: 30.5 mg/L (source: WSKOWWIN)

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

Log Kow used: 3.90 (KowWin est)

Log Kaw used: -8.320 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 12.220

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 1.1192

Biowin2 (Non-Linear Model) : 0.9931

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.5671 (weeks-months)

Biowin4 (Primary Survey Model) : 3.6634 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.5830

Biowin6 (MITI Non-Linear Model): 0.4559

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.2299

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): 1.4E-005 Pa (1.05E-007 mm Hg)

Log Koa (Koawin est ): 12.220

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

Mackay model : 0.214

Octanol/air (Koa) model: 0.407

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 0.886

Mackay model : 0.945

Octanol/air (Koa) model: 0.97

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 201.9392 E-12 cm3/molecule-sec

Half-Life = 0.053 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 0.636 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Reaction With Nitrate Radicals May Be Important!

Fraction sorbed to airborne particulates (phi):

0.915 (Junge-Pankow, Mackay avg)

0.97 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 801.8 L/kg (MCI method)

Log Koc: 2.904 (MCI method)

Koc : 5290 L/kg (Kow method)

Log Koc: 3.723 (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 = 1.657 (BCF = 45.37 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -1.0723 days (HL = 0.08466 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.546 (BCF = 35.15)

Log BAF Arnot-Gobas method (upper trophic) = 1.546 (BAF = 35.15)

log Kow used: 3.90 (estimated)

Volatilization from Water:

Henry LC: 1.17E-010 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 8.288E+006 hours (3.453E+005 days)

Half-Life from Model Lake : 9.041E+007 hours (3.767E+006 days)

Removal In Wastewater Treatment:

Total removal: 25.72 percent

Total biodegradation: 0.29 percent

Total sludge adsorption: 25.43 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 0.00399 1.27 1000

Water 12.4 900 1000

Soil 87 1.8e+003 1000

Sediment 0.552 8.1e+003 0

Persistence Time: 1.73e+003 hr

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