This page contains the EPI System Summary only.
For complete control of this information -
Download the free EPI SuiteTM v4.0 program : here
also you can go back to the Datasheet
CAS Number: 306-08-1
SMILES : O=C(O)Cc(ccc(O)c1OC)c1
CHEM : Benzeneacetic acid, 4-hydroxy-3-methoxy-
MOL FOR: C9 H10 O4
MOL WT : 182.18
------------------------------ 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) = 0.77
Log Kow (Exper. database match) = 0.33
Exper. Ref: LAHANN,TR ET AL. (1989)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 338.85 (Adapted Stein & Brown method)
Melting Pt (deg C): 117.66 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 4.3E-006 (Modified Grain method)
VP (Pa, 25 deg C) : 0.000573 (Modified Grain method)
MP (exp database): 143.5 deg C
Subcooled liquid VP: 6.8E-005 mm Hg (25 deg C, Mod-Grain method)
: 0.00907 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 6.973e+004
log Kow used: 0.33 (expkow database)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1.1495e+005 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Phenols-acid
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 2.72E-013 atm-m3/mole (2.76E-008 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: 1.478E-011 atm-m3/mole (1.498E-006 Pa-m3/mole)
VP: 4.3E-006 mm Hg (source: MPBPVP)
WS: 6.97E+004 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 0.33 (exp database)
Log Kaw used: -10.954 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 11.284
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0359
Biowin2 (Non-Linear Model) : 0.9918
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0846 (weeks )
Biowin4 (Primary Survey Model) : 4.0187 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5802
Biowin6 (MITI Non-Linear Model): 0.6148
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.7939
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): 0.00907 Pa (6.8E-005 mm Hg)
Log Koa (Koawin est ): 11.284
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.000331
Octanol/air (Koa) model: 0.0472
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.0118
Mackay model : 0.0258
Octanol/air (Koa) model: 0.791
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 31.9218 E-12 cm3/molecule-sec
Half-Life = 0.335 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 4.021 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
0.0188 (Junge-Pankow, Mackay avg)
0.791 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 24.83 L/kg (MCI method)
Log Koc: 1.395 (MCI method)
Koc : 3.639 L/kg (Kow method)
Log Koc: 0.561 (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) = -1.6066 days (HL = 0.02474 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.002 (BCF = 1.006)
Log BAF Arnot-Gobas method (upper trophic) = 0.002 (BAF = 1.006)
log Kow used: 0.33 (expkow database)
Volatilization from Water:
Henry LC: 2.72E-013 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 2.905E+009 hours (1.211E+008 days)
Half-Life from Model Lake : 3.169E+010 hours (1.321E+009 days)
Removal In Wastewater Treatment:
Total removal: 1.86 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.76 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 5.56e-006 8.04 1000
Water 25.4 360 1000
Soil 74.5 720 1000
Sediment 0.0729 3.24e+003 0
Persistence Time: 685 hr