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CAS Num: 005462-06-6
SMILES : O=CC(C)Cc(ccc(OC)c1)c1
CHEM : Benzenepropanal, 4-methoxy-.alpha.-methyl-
MOL FOR: C11 H14 O2
MOL WT : 178.23
------------------------------ EPI SUMMARY (v4.00) --------------------------
Physical Property Inputs:
Water Solubility (mg/L): ------
Vapor Pressure (mm Hg) : ------
Henry LC (atm-m3/mole) : ------
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.67 estimate) = 2.53
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 264.35 (Adapted Stein & Brown method)
Melting Pt (deg C): 34.71 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.0104 (Modified Grain method)
VP (Pa, 25 deg C) : 1.38 (Modified Grain method)
Subcooled liquid VP: 0.0127 mm Hg (25 deg C, Mod-Grain method)
: 1.69 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 386.9
log Kow used: 2.53 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 471 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Aldehydes (Mono)
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 5.71E-007 atm-m3/mole (5.79E-002 Pa-m3/mole)
Group Method: 3.15E-006 atm-m3/mole (3.19E-001 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: 6.304E-006 atm-m3/mole (6.387E-001 Pa-m3/mole)
VP: 0.0104 mm Hg (source: MPBPVP)
WS: 387 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 2.53 (KowWin est)
Log Kaw used: -4.632 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.162
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.1339
Biowin2 (Non-Linear Model) : 1.0000
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.6946 (weeks-months)
Biowin4 (Primary Survey Model) : 3.7958 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7158
Biowin6 (MITI Non-Linear Model): 0.8509
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.3082
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): 1.69 Pa (0.0127 mm Hg)
Log Koa (Koawin est ): 7.162
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.77E-006
Octanol/air (Koa) model: 3.56E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 6.4E-005
Mackay model : 0.000142
Octanol/air (Koa) model: 0.000285
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 53.7509 E-12 cm3/molecule-sec
Half-Life = 0.199 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 2.388 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.000103 (Junge-Pankow, Mackay avg)
0.000285 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 37.85 L/kg (MCI method)
Log Koc: 1.578 (MCI method)
Koc : 141.6 L/kg (Kow method)
Log Koc: 2.151 (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 = 1.337 (BCF = 21.74 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.2607 days (HL = 0.5487 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.494 (BCF = 31.16)
Log BAF Arnot-Gobas method (upper trophic) = 1.494 (BAF = 31.16)
log Kow used: 2.53 (estimated)
Volatilization from Water:
Henry LC: 3.15E-006 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 249.5 hours (10.4 days)
Half-Life from Model Lake : 2834 hours (118.1 days)
Removal In Wastewater Treatment:
Total removal: 3.36 percent
Total biodegradation: 0.10 percent
Total sludge adsorption: 3.08 percent
Total to Air: 0.18 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.305 4.78 1000
Water 31.9 900 1000
Soil 67.7 1.8e+003 1000
Sediment 0.118 8.1e+003 0
Persistence Time: 770 hr