ChemSpider 2D Image | methyl pyrazol- | C4H6N2

methyl pyrazol-

  • Molecular FormulaC4H6N2
  • Average mass82.104 Da
  • Monoisotopic mass82.053101 Da
  • ChemSpider ID14345

More details:






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

1H-Pyrazole, 3-methyl- [ACD/Index Name]
3-Methyl-1H-pyrazol [German] [ACD/IUPAC Name]
3-Methyl-1H-pyrazole [ACD/IUPAC Name]
3-Méthyl-1H-pyrazole [French] [ACD/IUPAC Name]
3-Methylpyrazole
methyl pyrazol-
pyrazolylmethane
[1453-58-3]
1453-58-3 [RN]
1H-Pyrazole,5-methyl-
More...

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

BRN 0001454 [DBID]
M75802_ALDRICH [DBID]
MFCD08685900 [DBID]
ZINC04701702 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
  • Gas Chromatography
    • Retention Index (Kovats):

      921 (estimated with error: 83) NIST Spectra mainlib_340715, replib_73043, replib_157624, replib_230053
      930 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column diameter: 0.3 mm; Column length: 50 m; Column type: Capillary; Start T: 110 C; CAS no: 1453583; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.4 um; Data type: Kovats RI; Authors: Zhuravleva, I.L., Evaluation of the polarity and boiling points of nitrogen-containing heterocyclic compounds by gas chromatography, Russ. Chem. Bull. (Engl. Transl.), 49(2), 2000, 325-328., Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 110 C; CAS no: 1453583; 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
    • Retention Index (Normal Alkane):

      1690.3 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Description: 40C=> 10C/min =>60C=> 3C/min =>200C (15min); CAS no: 1453583; Active phase: Carbowax 20M; Carrier gas: He; Phase thickness: 0.2 um; Data type: Normal alkane RI; Authors: Diaz, P.; Ibanez, E.; Senorans, F.J.; Reglero, G., Truffle aroma characterization by headspace solid-phase microextraction, J. Chromatogr. A, 1017, 2003, 207-214.) NIST Spectra nist ri
    • Retention Index (Linear):

      930 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 3.05 m; Column type: Packed; Heat rate: 10 K/min; Start T: 40 C; End T: 250 C; End time: 60 min; Start time: 4 min; CAS no: 1453583; Active phase: SE-30; Carrier gas: He; Substrate: Supelcoport and Chromosorb; Data type: Linear RI; Authors: Peng, C.T.; Ding, S.F.; Hua, R.L.; Yang, Z.C., Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns, J. Chromatogr., 436, 1988, 137-172.) NIST Spectra nist ri

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

Density: 1.1±0.1 g/cm3
Boiling Point: 204.0±0.0 °C at 760 mmHg
Vapour Pressure: 0.4±0.3 mmHg at 25°C
Enthalpy of Vaporization: 42.2±3.0 kJ/mol
Flash Point: 87.4±11.7 °C
Index of Refraction: 1.523
Molar Refractivity: 23.6±0.3 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.78
ACD/LogD (pH 5.5): 0.76
ACD/BCF (pH 5.5): 2.22
ACD/KOC (pH 5.5): 61.30
ACD/LogD (pH 7.4): 0.77
ACD/BCF (pH 7.4): 2.26
ACD/KOC (pH 7.4): 62.39
Polar Surface Area: 29 Å2
Polarizability: 9.4±0.5 10-24cm3
Surface Tension: 43.7±3.0 dyne/cm
Molar Volume: 77.3±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) =  0.61

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  196.19  (Adapted Stein & Brown method)
    Melting Pt (deg C):  17.61  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.213  (Modified Grain method)
    MP  (exp database):  36.5 deg C
    BP  (exp database):  204 deg C
    Subcooled liquid VP: 0.271 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):  3.937e+004
       log Kow used: 0.61 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  48265 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.07E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  5.845E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.61  (KowWin est)
  Log Kaw used:  -3.779  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.389
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7631
   Biowin2 (Non-Linear Model)     :   0.9183
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9429  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6607  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5258
   Biowin6 (MITI Non-Linear Model):   0.6688
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.2735
 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):  36.1 Pa (0.271 mm Hg)
  Log Koa (Koawin est  ): 4.389
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  8.3E-008 
       Octanol/air (Koa) model:  6.01E-009 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  3E-006 
       Mackay model           :  6.64E-006 
       Octanol/air (Koa) model:  4.81E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  94.1175 E-12 cm3/molecule-sec
      Half-Life =     0.114 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.364 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.82E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  15.75
      Log Koc:  1.197 

 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: 0.61 (estimated)

 Volatilization from Water:
    Henry LC:  4.07E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      131.3  hours   (5.47 days)
    Half-Life from Model Lake :       1508  hours   (62.84 days)

 Removal In Wastewater Treatment:
    Total removal:               2.09  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.77  percent
    Total to Air:                0.23  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.421           2.73         1000       
   Water     46.7            360          1000       
   Soil      52.8            720          1000       
   Sediment  0.0887          3.24e+003    0          
     Persistence Time: 335 hr




                    

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