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CAS Number: 7755-92-2
SMILES : O=CN(CCNC1)C1
CHEM : 1-Piperazinecarboxaldehyde
MOL FOR: C5 H10 N2 O1
MOL WT : 114.15
------------------------------ EPI SUMMARY (v4.11) --------------------------
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 v1.68 estimate) = -1.56
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 227.72 (Adapted Stein & Brown method)
Melting Pt (deg C): 45.44 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.0539 (Modified Grain method)
VP (Pa, 25 deg C) : 7.18 (Modified Grain method)
Subcooled liquid VP: 0.0827 mm Hg (25 deg C, Mod-Grain method)
: 11 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -1.56 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1e+006 mg/L
ECOSAR Class Program (ECOSAR v1.11):
Class(es) found:
Aliphatic Amines
Amides
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 9.76E-012 atm-m3/mole (9.89E-007 Pa-m3/mole)
Group Method: Incomplete
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 8.096E-009 atm-m3/mole (8.203E-004 Pa-m3/mole)
VP: 0.0539 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -1.56 (KowWin est)
Log Kaw used: -9.399 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.839
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0572
Biowin2 (Non-Linear Model) : 0.9945
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9171 (weeks )
Biowin4 (Primary Survey Model) : 3.9318 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.6114
Biowin6 (MITI Non-Linear Model): 0.6852
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): -0.0346
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): 11 Pa (0.0827 mm Hg)
Log Koa (Koawin est ): 7.839
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.72E-007
Octanol/air (Koa) model: 1.69E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 9.83E-006
Mackay model : 2.18E-005
Octanol/air (Koa) model: 0.00135
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 120.7361 E-12 cm3/molecule-sec
Half-Life = 0.089 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 1.063 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1.58E-005 (Junge-Pankow, Mackay avg)
0.00135 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1.563 L/kg (MCI method)
Log Koc: 0.194 (MCI method)
Koc : 0.5569 L/kg (Kow method)
Log Koc: -0.254 (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 v3.01):
Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -2.1127 days (HL = 0.007714 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.8937)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.8937)
log Kow used: -1.56 (estimated)
Volatilization from Water:
Henry LC: 9.76E-012 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 6.409E+007 hours (2.67E+006 days)
Half-Life from Model Lake : 6.992E+008 hours (2.913E+007 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.75 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 0.000225 2.13 1000
Water 37.1 360 1000
Soil 62.8 720 1000
Sediment 0.0703 3.24e+003 0
Persistence Time: 591 hr