SMILES : O=C(OCCC(C)C)c(c(O)ccc1)c1
CHEM : Benzoic acid, 2-hydroxy-, 3-methylbutyl ester
CAS NUM: 000087-20-7
MOL FOR: C12 H16 O3
MOL WT : 208.26
------------------------------ EPI SUMMARY (v3.20) --------------------------
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) = 4.49
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
Boiling Pt (deg C): 306.01 (Adapted Stein & Brown method)
Melting Pt (deg C): 82.45 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.000651 (Modified Grain method)
BP (exp database): 278 deg C
Subcooled liquid VP: 0.0023 mm Hg (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 21.89
log Kow used: 4.49 (estimated)
no-melting pt equation used
Water Sol (Exper. database match) = 145 mg/L (25 deg C)
Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 69.335 mg/L
Wat Sol (Exper. database match) = 145.00
Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)
ECOSAR Class Program (ECOSAR v0.99h):
Class(es) found:
Esters
Phenols
Salicylates
Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
Bond Method : 1.41E-005 atm-m3/mole
Group Method: 1.02E-008 atm-m3/mole
Henrys LC [VP/WSol estimate using EPI values]: 8.149E-006 atm-m3/mole
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 4.49 (KowWin est)
Log Kaw used: -3.239 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.729
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.9384
Biowin2 (Non-Linear Model) : 0.9936
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9355 (weeks )
Biowin4 (Primary Survey Model) : 3.8159 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5824
Biowin6 (MITI Non-Linear Model): 0.6741
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.4339
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): 0.307 Pa (0.0023 mm Hg)
Log Koa (Koawin est ): 7.729
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 9.78E-006
Octanol/air (Koa) model: 1.32E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.000353
Mackay model : 0.000782
Octanol/air (Koa) model: 0.00105
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 16.8855 E-12 cm3/molecule-sec
Half-Life = 0.633 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 7.601 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi): 0.000568 (Junge,Mackay)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (PCKOCWIN v1.66):
Koc : 1243
Log Koc: 3.095
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
Total Kb for pH > 8 at 25 deg C : 3.204E-002 L/mol-sec
Kb Half-Life at pH 8: 250.370 days
Kb Half-Life at pH 7: 6.855 years
Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
Log BCF from regression-based method = 2.761 (BCF = 576.5)
log Kow used: 4.49 (estimated)
Volatilization from Water:
Henry LC: 1.41E-005 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 94.1 hours (3.921 days)
Half-Life from Model Lake : 790.8 hours (32.95 days)
Removal In Wastewater Treatment:
Total removal: 55.71 percent
Total biodegradation: 0.52 percent
Total sludge adsorption: 54.87 percent
Total to Air: 0.33 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 1.23 15.2 1000
Water 21.4 360 1000
Soil 69.4 720 1000
Sediment 8 3.24e+003 0
Persistence Time: 500 hr