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5-Methyl-4,5-dihydro-1H-pyrazole
CC1CC=NN1
InChI=1S/C4H8N2/c1-4-2-3-5-6-4/h3-4,6H,2H2,1H3
KDTSAMBCRXSULF-UHFFFAOYSA-N
CSID:478313, http://www.chemspider.com/Chemical-Structure.478313.html (accessed 18:51, Jul 8, 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) = 0.49 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 197.51 (Adapted Stein & Brown method) Melting Pt (deg C): 25.79 (Mean or Weighted MP) VP(mm Hg,25 deg C): 0.367 (Modified Grain method) Subcooled liquid VP: 0.373 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): 4.869e+004 log Kow used: 0.49 (estimated) no-melting pt equation used Water Sol Estimate from Fragments: Wat Sol (v1.01 est) = 3.9873e+005 mg/L ECOSAR Class Program (ECOSAR v0.99h): Class(es) found: Hydrazines Henrys Law Constant (25 deg C) [HENRYWIN v3.10]: Bond Method : 1.57E-005 atm-m3/mole Group Method: Incomplete Henrys LC [VP/WSol estimate using EPI values]: 8.343E-007 atm-m3/mole Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]: Log Kow used: 0.49 (KowWin est) Log Kaw used: -3.193 (HenryWin est) Log Koa (KOAWIN v1.10 estimate): 3.683 Log Koa (experimental database): None Probability of Rapid Biodegradation (BIOWIN v4.10): Biowin1 (Linear Model) : 0.7075 Biowin2 (Non-Linear Model) : 0.8599 Expert Survey Biodegradation Results: Biowin3 (Ultimate Survey Model): 3.0133 (weeks ) Biowin4 (Primary Survey Model) : 3.7264 (days-weeks ) MITI Biodegradation Probability: Biowin5 (MITI Linear Model) : 0.5069 Biowin6 (MITI Non-Linear Model): 0.5235 Anaerobic Biodegradation Probability: Biowin7 (Anaerobic Linear Model): 0.7154 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): 49.7 Pa (0.373 mm Hg) Log Koa (Koawin est ): 3.683 Kp (particle/gas partition coef. (m3/ug)): Mackay model : 6.03E-008 Octanol/air (Koa) model: 1.18E-009 Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 2.18E-006 Mackay model : 4.83E-006 Octanol/air (Koa) model: 9.46E-008 Atmospheric Oxidation (25 deg C) [AopWin v1.92]: Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 79.8015 E-12 cm3/molecule-sec Half-Life = 0.134 Days (12-hr day; 1.5E6 OH/cm3) Half-Life = 1.608 Hrs Ozone Reaction: No Ozone Reaction Estimation Fraction sorbed to airborne particulates (phi): 3.5E-006 (Junge,Mackay) Note: the sorbed fraction may be resistant to atmospheric oxidation Soil Adsorption Coefficient (PCKOCWIN v1.66): Koc : 109.2 Log Koc: 2.038 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 = 0.500 (BCF = 3.162) log Kow used: 0.49 (estimated) Volatilization from Water: Henry LC: 1.57E-005 atm-m3/mole (estimated by Bond SAR Method) Half-Life from Model River: 35.14 hours (1.464 days) Half-Life from Model Lake : 460.2 hours (19.18 days) Removal In Wastewater Treatment: Total removal: 2.71 percent Total biodegradation: 0.09 percent Total sludge adsorption: 1.75 percent Total to Air: 0.87 percent (using 10000 hr Bio P,A,S) Level III Fugacity Model: Mass Amount Half-Life Emissions (percent) (hr) (kg/hr) Air 0.582 3.22 1000 Water 47.5 360 1000 Soil 51.8 720 1000 Sediment 0.0895 3.24e+003 0 Persistence Time: 312 hr
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