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CAS Number: 5128-44-9
SMILES : c12OC(c3ccc(OC)cc3)=CC(=O)c1c(O)cc(OC)c2
CHEM : 5-hydroxy-7-methoxy-2-(4-methoxyphenyl)chromen-4-one
MOL FOR: C17 H14 O5
MOL WT : 298.30
------------------------------ 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) = 3.97
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 441.99 (Adapted Stein & Brown method)
Melting Pt (deg C): 185.50 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 2.82E-009 (Modified Grain method)
VP (Pa, 25 deg C) : 3.76E-007 (Modified Grain method)
Subcooled liquid VP: 1.34E-007 mm Hg (25 deg C, Mod-Grain method)
: 1.78E-005 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 19.57
log Kow used: 3.97 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 27.88 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Phenols
Vinyl/Allyl Ketones
Vinyl/Allyl Ethers
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.66E-011 atm-m3/mole (1.68E-006 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: 5.656E-011 atm-m3/mole (5.731E-006 Pa-m3/mole)
VP: 2.82E-009 mm Hg (source: MPBPVP)
WS: 19.6 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 3.97 (KowWin est)
Log Kaw used: -9.168 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 13.138
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.1239
Biowin2 (Non-Linear Model) : 0.9975
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.3995 (weeks-months)
Biowin4 (Primary Survey Model) : 3.6662 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.6487
Biowin6 (MITI Non-Linear Model): 0.4981
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.2537
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): 1.79E-005 Pa (1.34E-007 mm Hg)
Log Koa (Koawin est ): 13.138
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.168
Octanol/air (Koa) model: 3.37
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.858
Mackay model : 0.931
Octanol/air (Koa) model: 0.996
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 232.2142 E-12 cm3/molecule-sec
Half-Life = 0.046 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.553 Hrs
Ozone Reaction:
OVERALL Ozone Rate Constant = 10.500000 E-17 cm3/molecule-sec
Half-Life = 0.109 Days (at 7E11 mol/cm3)
Half-Life = 2.619 Hrs
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
0.895 (Junge-Pankow, Mackay avg)
0.996 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 3556 L/kg (MCI method)
Log Koc: 3.551 (MCI method)
Koc : 3938 L/kg (Kow method)
Log Koc: 3.595 (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 = 1.699 (BCF = 50.02 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.1144 days (HL = 0.7684 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.387 (BCF = 243.5)
Log BAF Arnot-Gobas method (upper trophic) = 2.387 (BAF = 243.6)
log Kow used: 3.97 (estimated)
Volatilization from Water:
Henry LC: 1.66E-011 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 6.092E+007 hours (2.538E+006 days)
Half-Life from Model Lake : 6.645E+008 hours (2.769E+007 days)
Removal In Wastewater Treatment:
Total removal: 28.71 percent
Total biodegradation: 0.31 percent
Total sludge adsorption: 28.40 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 0.00108 0.777 1000
Water 11.2 900 1000
Soil 86.5 1.8e+003 1000
Sediment 2.29 8.1e+003 0
Persistence Time: 1.84e+003 hr