ChemSpider 2D Image | 4-Methylpyridazine-3,6-diol | C5H6N2O2

4-Methylpyridazine-3,6-diol

  • Molecular FormulaC5H6N2O2
  • Average mass126.113 Da
  • Monoisotopic mass126.042931 Da
  • ChemSpider ID72119

More details:

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

1,2-Dihydro-4-methyl-3,6-pyridazinedione
227-276-7 [EINECS]
3,6-Dihydroxy-4-methylpyridazine
3,6-pyridazinediol, 4-methyl- [ACD/Index Name]
3,6-Pyridazinedione, 1,2-dihydro-4-methyl-
4-methyl-1,2,3,6-tetrahydropyridazine-3,6-dione
4-Methyl-1,2-dihydro-3,6-pyridazinedione [ACD/IUPAC Name]
4-methyl-1,2-dihydropyridazine-3,6-dione
4-Methyl-3,6-pyridazindiol [German] [ACD/IUPAC Name]
4-Méthyl-3,6-pyridazinediol [French] [ACD/IUPAC Name]
More...

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

668141_ALDRICH [DBID]
AC-907/30003041 [DBID]
AI3-62484 [DBID]
CCRIS 4693 [DBID]
NSC48830 [DBID]
NSC58527 [DBID]
ZINC00331819 [DBID]

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.4±0.1 g/cm3
Boiling Point: 434.4±40.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.1 mmHg at 25°C
Enthalpy of Vaporization: 71.7±3.0 kJ/mol
Flash Point: 216.5±27.3 °C
Index of Refraction: 1.614
Molar Refractivity: 31.0±0.3 cm3
#H bond acceptors: 4
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.32
ACD/LogD (pH 5.5): -2.01
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -2.95
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 66 Å2
Polarizability: 12.3±0.5 10-24cm3
Surface Tension: 76.5±3.0 dyne/cm
Molar Volume: 89.0±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™ 

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -0.34

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  377.80  (Adapted Stein & Brown method)
    Melting Pt (deg C):  155.51  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.33E-006  (Modified Grain method)
    Subcooled liquid VP: 2.86E-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):  9092
       log Kow used: -0.34 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Hydrazines

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.15E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.428E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.34  (KowWin est)
  Log Kaw used:  -8.770  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.430
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6875
   Biowin2 (Non-Linear Model)     :   0.7717
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9205  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6658  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.0294
   Biowin6 (MITI Non-Linear Model):   0.0000
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6830
 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):  0.00381 Pa (2.86E-005 mm Hg)
  Log Koa (Koawin est  ): 8.430
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000787 
       Octanol/air (Koa) model:  6.61E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0276 
       Mackay model           :  0.0592 
       Octanol/air (Koa) model:  0.00526 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  21.7813 E-12 cm3/molecule-sec
      Half-Life =     0.491 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     5.893 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.137500 E-17 cm3/molecule-sec
      Half-Life =     1.007 Days (at 7E11 mol/cm3)
      Half-Life =     24.179 Hrs
   Fraction sorbed to airborne particulates (phi): 0.0434 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  17.12
      Log Koc:  1.233 

 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: -0.34 (estimated)

 Volatilization from Water:
    Henry LC:  4.15E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.584E+007  hours   (6.602E+005 days)
    Half-Life from Model Lake : 1.728E+008  hours   (7.202E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       0.00101         7.92         1000       
   Water     38.8            360          1000       
   Soil      61.2            720          1000       
   Sediment  0.0712          3.24e+003    0          
     Persistence Time: 580 hr

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