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CAS Number: 5150-42-5
SMILES : COc1c(O)cccc1OC
CHEM : 2,3-DIMETHOXYPHENOL
MOL FOR: C8 H10 O3
MOL WT : 154.17
------------------------------ 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) = 0.90
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 249.07 (Adapted Stein & Brown method)
Melting Pt (deg C): 55.14 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00617 (Modified Grain method)
VP (Pa, 25 deg C) : 0.823 (Modified Grain method)
Subcooled liquid VP: 0.0117 mm Hg (25 deg C, Mod-Grain method)
: 1.56 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1.235e+004
log Kow used: 0.90 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 16632 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Phenols
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.96E-009 atm-m3/mole (1.99E-004 Pa-m3/mole)
Group Method: 4.35E-007 atm-m3/mole (4.41E-002 Pa-m3/mole)
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 1.013E-007 atm-m3/mole (1.027E-002 Pa-m3/mole)
VP: 0.00617 mm Hg (source: MPBPVP)
WS: 1.24E+004 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 0.90 (KowWin est)
Log Kaw used: -7.096 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.996
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0538
Biowin2 (Non-Linear Model) : 0.9980
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.7986 (weeks )
Biowin4 (Primary Survey Model) : 3.8192 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7337
Biowin6 (MITI Non-Linear Model): 0.8332
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8274
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): 1.56 Pa (0.0117 mm Hg)
Log Koa (Koawin est ): 7.996
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.92E-006
Octanol/air (Koa) model: 2.43E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 6.95E-005
Mackay model : 0.000154
Octanol/air (Koa) model: 0.00194
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 201.7992 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):
0.000112 (Junge-Pankow, Mackay avg)
0.00194 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 80.04 L/kg (MCI method)
Log Koc: 1.903 (MCI method)
Koc : 50.3 L/kg (Kow method)
Log Koc: 1.702 (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) = -1.4051 days (HL = 0.03934 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.146 (BCF = 1.399)
Log BAF Arnot-Gobas method (upper trophic) = 0.146 (BAF = 1.399)
log Kow used: 0.90 (estimated)
Volatilization from Water:
Henry LC: 4.35E-007 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1672 hours (69.69 days)
Half-Life from Model Lake : 1.835E+004 hours (764.5 days)
Removal In Wastewater Treatment:
Total removal: 1.90 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.79 percent
Total to Air: 0.02 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.14 1.27 1000
Water 29 360 1000
Soil 70.7 720 1000
Sediment 0.147 3.24e+003 0
Persistence Time: 434 hr