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CAS Number: 26153-38-8
SMILES : O=Cc1cc(O)cc(O)c1
CHEM : 3,5-dihydroxybenzaldehyde
MOL FOR: C7 H6 O3
MOL WT : 138.12
------------------------------ 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) = 0.75
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 289.49 (Adapted Stein & Brown method)
Melting Pt (deg C): 88.36 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.000116 (Modified Grain method)
VP (Pa, 25 deg C) : 0.0155 (Modified Grain method)
Subcooled liquid VP: 0.000472 mm Hg (25 deg C, Mod-Grain method)
: 0.063 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 7.42e+004
log Kow used: 0.75 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1.2297e+005 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Aldehydes (Mono)
Phenols, Poly
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.45E-013 atm-m3/mole (1.47E-008 Pa-m3/mole)
Group Method: 4.25E-013 atm-m3/mole (4.31E-008 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: 2.841E-010 atm-m3/mole (2.879E-005 Pa-m3/mole)
VP: 0.000116 mm Hg (source: MPBPVP)
WS: 7.42E+004 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 0.75 (KowWin est)
Log Kaw used: -11.227 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 11.977
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.1980
Biowin2 (Non-Linear Model) : 1.0000
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0290 (weeks )
Biowin4 (Primary Survey Model) : 3.9245 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.8657
Biowin6 (MITI Non-Linear Model): 0.9321
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8338
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): 0.0629 Pa (0.000472 mm Hg)
Log Koa (Koawin est ): 11.977
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 4.77E-005
Octanol/air (Koa) model: 0.233
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00172
Mackay model : 0.0038
Octanol/air (Koa) model: 0.949
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 217.1580 E-12 cm3/molecule-sec
Half-Life = 0.049 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.591 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
0.00276 (Junge-Pankow, Mackay avg)
0.949 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 18.29 L/kg (MCI method)
Log Koc: 1.262 (MCI method)
Koc : 27.82 L/kg (Kow method)
Log Koc: 1.444 (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) = -1.9884 days (HL = 0.01027 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.026 (BCF = 1.061)
Log BAF Arnot-Gobas method (upper trophic) = 0.026 (BAF = 1.061)
log Kow used: 0.75 (estimated)
Volatilization from Water:
Henry LC: 4.25E-013 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.619E+009 hours (6.746E+007 days)
Half-Life from Model Lake : 1.766E+010 hours (7.359E+008 days)
Removal In Wastewater Treatment:
Total removal: 1.87 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.78 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 8.68e-006 1.18 1000
Water 27.2 360 1000
Soil 72.8 720 1000
Sediment 0.0705 3.24e+003 0
Persistence Time: 669 hr