ChemSpider 2D Image | 1-Methylpyrazol-5-ol | C4H6N2O

1-Methylpyrazol-5-ol

  • Molecular FormulaC4H6N2O
  • Average mass98.103 Da
  • Monoisotopic mass98.048012 Da
  • ChemSpider ID10688025

More details:

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

1H-Pyrazol-5-ol, 1-methyl- [ACD/Index Name]
1-Methyl-1H-pyrazol-5-ol [ACD/IUPAC Name]
1-Methyl-1H-pyrazol-5-ol [German] [ACD/IUPAC Name]
1-Méthyl-1H-pyrazol-5-ol [French] [ACD/IUPAC Name]
1-Methyl-5-hydroxy-1H-pyrazole
1-Methyl-5-hydroxypyrazole
1-Methylpyrazol-5-ol
2-Methyl-2H-pyrazol-3-ol
33641-15-5 [RN]
5-Hydroxy-1-methyl-1H-Pyrazole
More...

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

682055_ALDRICH [DBID]
CCRIS 4693 [DBID]

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

Density: 1.2±0.1 g/cm3
Boiling Point: 217.7±13.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.4 mmHg at 25°C
Enthalpy of Vaporization: 47.3±3.0 kJ/mol
Flash Point: 85.4±19.8 °C
Index of Refraction: 1.568
Molar Refractivity: 26.1±0.5 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.10
ACD/LogD (pH 5.5): 0.17
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 29.44
ACD/LogD (pH 7.4): 0.16
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 28.41
Polar Surface Area: 38 Å2
Polarizability: 10.3±0.5 10-24cm3
Surface Tension: 44.3±7.0 dyne/cm
Molar Volume: 79.8±7.0 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) =  0.88

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  183.99  (Adapted Stein & Brown method)
    Melting Pt (deg C):  24.62  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.444  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.117e+004
       log Kow used: 0.88 (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:
       Phenols

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.20E-009  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.707E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.88  (KowWin est)
  Log Kaw used:  -6.475  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.355
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8167
   Biowin2 (Non-Linear Model)     :   0.9258
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0388  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7459  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5014
   Biowin6 (MITI Non-Linear Model):   0.6086
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6464
 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):  53.3 Pa (0.4 mm Hg)
  Log Koa (Koawin est  ): 7.355
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  5.62E-008 
       Octanol/air (Koa) model:  5.56E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.03E-006 
       Mackay model           :  4.5E-006 
       Octanol/air (Koa) model:  0.000445 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 200.2760 E-12 cm3/molecule-sec
      Half-Life =     0.053 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.641 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 3.27E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  26.04
      Log Koc:  1.416 

 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: 0.88 (estimated)

 Volatilization from Water:
    Henry LC:  8.2E-009 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 7.072E+004  hours   (2947 days)
    Half-Life from Model Lake : 7.716E+005  hours   (3.215E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               1.88  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.78  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       0.0887          1.28         1000       
   Water     40              360          1000       
   Soil      59.8            720          1000       
   Sediment  0.0785          3.24e+003    0          
     Persistence Time: 447 hr

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