ChemSpider 2D Image | 4-Methylpyridazine | C5H6N2

4-Methylpyridazine

  • Molecular FormulaC5H6N2
  • Average mass94.115 Da
  • Monoisotopic mass94.053101 Da
  • ChemSpider ID120629

More details:






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

1120-88-3 [RN]
4-Methylpyridazin [German] [ACD/IUPAC Name]
4-Methylpyridazine [ACD/IUPAC Name]
4-Méthylpyridazine [French] [ACD/IUPAC Name]
Pyridazine, 4-methyl- [ACD/Index Name]
"PYRIDAZINE, 4-METHYL-"
[1120-88-3]
15013-71-5 [RN]
227-276-7 [EINECS]
4-Methyl pyridazine
More...

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

MFCD00011594 [DBID]
297771_ALDRICH [DBID]
CCRIS 4693 [DBID]
NSC514234 [DBID]
ZINC01603717 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      Yellow Liquid Novochemy [NC-07657]
    • Safety:

      20/21/36/37/39 Novochemy [NC-07657]
      26-37 Alfa Aesar L09749
      36/37/38 Alfa Aesar L09749
      36/37/38 Novochemy [NC-07657]
      GHS02; GHS07; GHS09 Novochemy [NC-07657]
      GHS07 Biosynth W-200833
      H315; H319; H335 Biosynth W-200833
      H315-H319-H335 Alfa Aesar L09749
      H332; H403 Novochemy [NC-07657]
      IRRITANT Alfa Aesar L09749
      IRRITANT Matrix Scientific 069820
      Irritant SynQuest 3H32-1-G7, 69835
      P261; P305+P351+P338 Biosynth W-200833
      P261-P280-P305+P351+P338-P304+P340-P405-P501a Alfa Aesar L09749
      P305+P351+P338; P376; P270 Novochemy [NC-07657]
      R52/53 Novochemy [NC-07657]
      Warning Alfa Aesar L09749
      Warning Biosynth W-200833
      Warning Novochemy [NC-07657]
      WARNING: Irritates lungs, eyes, skin Alfa Aesar L09749
      Xi Abblis Chemicals AB1011572
  • Gas Chromatography
    • Retention Index (Kovats):

      781 (estimated with error: 83) NIST Spectra mainlib_342818
      1045 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 110 C; CAS no: 1120883; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.4 um; Data type: Kovats RI; Authors: Golovnya, R.V.; Kuz'menko, T.E.; Krikunova, N.I., The influence of alkyl substituents on the chromatographic indicator of self-association of N-containing heterocyclic compounds, Russ. Chem. Bull. (Engl. Transl.), 49(2), 2000, 321-324.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.0±0.1 g/cm3
Boiling Point: 226.9±0.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.5±3.0 kJ/mol
Flash Point: 105.6±0.0 °C
Index of Refraction: 1.503
Molar Refractivity: 27.3±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -0.31
ACD/LogD (pH 5.5): 0.06
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 25.42
ACD/LogD (pH 7.4): 0.07
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 26.04
Polar Surface Area: 26 Å2
Polarizability: 10.8±0.5 10-24cm3
Surface Tension: 41.0±3.0 dyne/cm
Molar Volume: 92.2±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) =  0.49
    Log Kow (Exper. database match) =  -0.32
       Exper. Ref:  Yamagami,C et al. (1990)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  215.28  (Adapted Stein & Brown method)
    Melting Pt (deg C):  27.24  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.148  (Modified Grain method)
    BP  (exp database):  98-100 @ 11 mm Hg deg C
    Subcooled liquid VP: 0.155 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):  2.279e+005
       log Kow used: -0.32 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.9037e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.17E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  8.042E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.32  (exp database)
  Log Kaw used:  -3.887  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.567
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7574
   Biowin2 (Non-Linear Model)     :   0.9046
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9163  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6434  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4983
   Biowin6 (MITI Non-Linear Model):   0.6169
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1780
 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):  20.7 Pa (0.155 mm Hg)
  Log Koa (Koawin est  ): 3.567
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.45E-007 
       Octanol/air (Koa) model:  9.06E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.24E-006 
       Mackay model           :  1.16E-005 
       Octanol/air (Koa) model:  7.25E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.7364 E-12 cm3/molecule-sec
      Half-Life =    14.524 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 8.43E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  29.05
      Log Koc:  1.463 

 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: -0.32 (expkow database)

 Volatilization from Water:
    Henry LC:  3.17E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      180.2  hours   (7.507 days)
    Half-Life from Model Lake :       2047  hours   (85.29 days)

 Removal In Wastewater Treatment:
    Total removal:               2.03  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.18  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       7.49            348          1000       
   Water     44.7            360          1000       
   Soil      47.7            720          1000       
   Sediment  0.0822          3.24e+003    0          
     Persistence Time: 375 hr


 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.49
    Log Kow (Exper. database match) =  -0.32
       Exper. Ref:  Yamagami,C et al. (1990)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  215.28  (Adapted Stein & Brown method)
    Melting Pt (deg C):  27.24  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.148  (Modified Grain method)
    BP  (exp database):  98-100 @ 11 mm Hg deg C
    Subcooled liquid VP: 0.155 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):  2.279e+005
       log Kow used: -0.32 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.9037e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.17E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  8.042E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.32  (exp database)
  Log Kaw used:  -3.887  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.567
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7574
   Biowin2 (Non-Linear Model)     :   0.9046
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9163  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6434  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4983
   Biowin6 (MITI Non-Linear Model):   0.6169
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1780
 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):  20.7 Pa (0.155 mm Hg)
  Log Koa (Koawin est  ): 3.567
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.45E-007 
       Octanol/air (Koa) model:  9.06E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.24E-006 
       Mackay model           :  1.16E-005 
       Octanol/air (Koa) model:  7.25E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.7364 E-12 cm3/molecule-sec
      Half-Life =    14.524 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 8.43E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  29.05
      Log Koc:  1.463 

 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: -0.32 (expkow database)

 Volatilization from Water:
    Henry LC:  3.17E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      180.2  hours   (7.507 days)
    Half-Life from Model Lake :       2047  hours   (85.29 days)

 Removal In Wastewater Treatment:
    Total removal:               2.03  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.18  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       7.49            348          1000       
   Water     44.7            360          1000       
   Soil      47.7            720          1000       
   Sediment  0.0822          3.24e+003    0          
     Persistence Time: 375 hr


 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.49
    Log Kow (Exper. database match) =  -0.32
       Exper. Ref:  Yamagami,C et al. (1990)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  215.28  (Adapted Stein & Brown method)
    Melting Pt (deg C):  27.24  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.148  (Modified Grain method)
    BP  (exp database):  98-100 @ 11 mm Hg deg C
    Subcooled liquid VP: 0.155 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):  2.279e+005
       log Kow used: -0.32 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.9037e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.17E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  8.042E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.32  (exp database)
  Log Kaw used:  -3.887  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.567
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7574
   Biowin2 (Non-Linear Model)     :   0.9046
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9163  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6434  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4983
   Biowin6 (MITI Non-Linear Model):   0.6169
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1780
 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):  20.7 Pa (0.155 mm Hg)
  Log Koa (Koawin est  ): 3.567
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.45E-007 
       Octanol/air (Koa) model:  9.06E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.24E-006 
       Mackay model           :  1.16E-005 
       Octanol/air (Koa) model:  7.25E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.7364 E-12 cm3/molecule-sec
      Half-Life =    14.524 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 8.43E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  29.05
      Log Koc:  1.463 

 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: -0.32 (expkow database)

 Volatilization from Water:
    Henry LC:  3.17E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      180.2  hours   (7.507 days)
    Half-Life from Model Lake :       2047  hours   (85.29 days)

 Removal In Wastewater Treatment:
    Total removal:               2.03  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.18  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       7.49            348          1000       
   Water     44.7            360          1000       
   Soil      47.7            720          1000       
   Sediment  0.0822          3.24e+003    0          
     Persistence Time: 375 hr




                    

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