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9-Methoxy-7H-furo[3,2-g]chromen-7-one
COc1c2c(ccc(=O)o2)cc3c1occ3
InChI=1S/C12H8O4/c1-14-12-10-8(4-5-15-10)6-7-2-3-9(13)16-11(7)12/h2-6H,1H3
QXKHYNVANLEOEG-UHFFFAOYSA-N
CSID:3971, http://www.chemspider.com/Chemical-Structure.3971.html (accessed 08:37, Nov 28, 2024)
Validated by Experts, Validated by Users, Non-Validated, Removed by Users
Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00
Predicted data is generated using the US Environmental Protection Agency�s EPISuite
Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 2.14 Log Kow (Exper. database match) = 2.00 Exper. Ref: (in press) Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 372.53 (Adapted Stein & Brown method) Melting Pt (deg C): 125.53 (Mean or Weighted MP) VP(mm Hg,25 deg C): 2.15E-006 (Modified Grain method) MP (exp database): 148 deg C Subcooled liquid VP: 3.83E-005 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): 706.2 log Kow used: 2.00 (expkow database) no-melting pt equation used Water Sol (Exper. database match) = 47.6 mg/L (30 deg C) Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992) Water Sol Estimate from Fragments: Wat Sol (v1.01 est) = 92.623 mg/L Wat Sol (Exper. database match) = 47.60 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992) ECOSAR Class Program (ECOSAR v0.99h): Class(es) found: Acrylates Henrys Law Constant (25 deg C) [HENRYWIN v3.10]: Bond Method : 4.00E-008 atm-m3/mole Group Method: Incomplete Henrys LC [VP/WSol estimate using EPI values]: 8.660E-010 atm-m3/mole Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]: Log Kow used: 2.00 (exp database) Log Kaw used: -5.786 (HenryWin est) Log Koa (KOAWIN v1.10 estimate): 7.786 Log Koa (experimental database): None Probability of Rapid Biodegradation (BIOWIN v4.10): Biowin1 (Linear Model) : 0.9507 Biowin2 (Non-Linear Model) : 0.9981 Expert Survey Biodegradation Results: Biowin3 (Ultimate Survey Model): 2.8035 (weeks ) Biowin4 (Primary Survey Model) : 3.8419 (days ) MITI Biodegradation Probability: Biowin5 (MITI Linear Model) : 0.6454 Biowin6 (MITI Non-Linear Model): 0.6201 Anaerobic Biodegradation Probability: Biowin7 (Anaerobic Linear Model): 0.6730 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): 0.00511 Pa (3.83E-005 mm Hg) Log Koa (Koawin est ): 7.786 Kp (particle/gas partition coef. (m3/ug)): Mackay model : 0.000587 Octanol/air (Koa) model: 1.5E-005 Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 0.0208 Mackay model : 0.0449 Octanol/air (Koa) model: 0.0012 Atmospheric Oxidation (25 deg C) [AopWin v1.92]: Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 106.3808 E-12 cm3/molecule-sec Half-Life = 0.101 Days (12-hr day; 1.5E6 OH/cm3) Half-Life = 1.207 Hrs Ozone Reaction: OVERALL Ozone Rate Constant = 2.100000 E-17 cm3/molecule-sec Half-Life = 0.546 Days (at 7E11 mol/cm3) Half-Life = 13.097 Hrs Fraction sorbed to airborne particulates (phi): 0.0328 (Junge,Mackay) Note: the sorbed fraction may be resistant to atmospheric oxidation Soil Adsorption Coefficient (PCKOCWIN v1.66): Koc : 652.6 Log Koc: 2.815 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]: Rate constants can NOT be estimated for this structure! Bioaccumulation Estimates from Log Kow (BCFWIN v2.17): Log BCF from regression-based method = 0.840 (BCF = 6.918) log Kow used: 2.00 (expkow database) Volatilization from Water: Henry LC: 4E-008 atm-m3/mole (estimated by Bond SAR Method) Half-Life from Model River: 2.152E+004 hours (896.8 days) Half-Life from Model Lake : 2.349E+005 hours (9788 days) Removal In Wastewater Treatment: Total removal: 2.25 percent Total biodegradation: 0.10 percent Total sludge adsorption: 2.15 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 0.178 2.04 1000 Water 29.7 360 1000 Soil 70 720 1000 Sediment 0.105 3.24e+003 0 Persistence Time: 462 hr
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