ChemSpider 2D Image | Metronidazole | C6H9N3O3

Metronidazole

  • Molecular FormulaC6H9N3O3
  • Average mass171.154 Da
  • Monoisotopic mass171.064392 Da
  • ChemSpider ID4029

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1-(b-Ethylol)-2-methyl-5-nitro-3-azapyrrole
1-(b-Hydroxyethyl)-2-methyl-5-nitroimidazole
1-(β-Ethylol)-2-methyl-5-nitro-3-azapyrrole
1-(β-Ethylol)-2-methyl-5-nitro-3-azapyrrole
1-(β-Hydroxyethyl)-2-methyl-5-nitroimidazole
1H-Imidazole-1-ethanol, 2-methyl-5-nitro- [ACD/Index Name]
1H-Imidazole-1-ethanol, 2-methyl-5-nitro-, radical ion(1-)
2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethanol [ACD/IUPAC Name]
2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethanol [German] [ACD/IUPAC Name]
2-(2-Méthyl-5-nitro-1H-imidazol-1-yl)éthanol [French] [ACD/IUPAC Name]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

1032 [DBID]
Bayer 5630 [DBID]
CHEBI:6909 [DBID]
MFCD00009750 [DBID]
NI5600000 [DBID]
SC 32642 [DBID]
U 54555 [DBID]
46461_RIEDEL [DBID]
AIDS007953 [DBID]
AIDS-007953 [DBID]
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  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      white to slightly yellow crystalline powder OU Chemical Safety Data (No longer updated) More details
    • Stability:

      Stable. Incompatible with strong oxidizing agents. OU Chemical Safety Data (No longer updated) More details
    • Toxicity:

      Organic Compound; Amine; Drug; Anti-Infective Agent; Radiation-Sensitizing Agent; Metabolite; Antiprotozoal Agent; Household Toxin; Synthetic Compound Toxin, Toxin-Target Database T3D4703
      ORL-RAT LD50 3000 mg kg-1, ORL-MUS LD50 3800 mg kg-1, SCU-MUS LD50 3640 mg kg-1 OU Chemical Safety Data (No longer updated) More details
    • Safety:

      36/37-60 Alfa Aesar H60258
      40 Alfa Aesar H60258
      A01AB17 Wikidata Q169569
      D06BX01 Wikidata Q169569
      G01AF01 Wikidata Q169569
      H351 Alfa Aesar H60258
      J01XD01 Wikidata Q169569
      P01AB01 Wikidata Q169569
      P281-P201-P202-P308+P313-P405-P501a Alfa Aesar H60258
      Safety glasses, adequate ventilation. OU Chemical Safety Data (No longer updated) More details
      Warning Alfa Aesar H60258
    • Target Organs:

      Hydrogenase inhibitor; Antibiotic TargetMol T1079
    • Chemical Class:

      A member of the class of imidazoles substituted at C-1, -2 and -5 with 2-hydroxyethyl, nitro and methyl groups respectively. It has activity against anaerobic bacteria and protozoa, and has a radiosen sitising effect on hypoxic tumour cells. It may be given by mouth in tablets, or as the benzoate in an oral suspension. The hydrochloride salt can be used in intravenous infusions. Metronidazole is a prodrug and is selective for anaerobic bacteria due to their ability to intracellularly reduce the nitro group of metronidazole to give nitroso-containing intermediates. These can covalently bind to D NA, disrupting its helical structure, inducing DNA strand breaks and inhibiting bacterial nucleic acid synthesis, ultimately resulting in bacterial cell death. ChEBI CHEBI:6909
    • Bio Activity:

      Antibacterial MedChem Express HY-B0318
      Antibacterial Antiparasitic MedChem Express HY-B0318
      Anti-infection MedChem Express HY-B0318
      Anti-infection; MedChem Express HY-B0318
      Fe hydrogenase 1;NADPH nitroreductase;14-?? Demethylase TargetMol T1079
      Metabolism; Microbiology & Virology TargetMol T1079
      Metronidazole is a nitroimidazole antibiotic medication used particularly for anaerobic bacteria and protozoa. MedChem Express
      Metronidazole is a nitroimidazole antibiotic medication used particularly for anaerobic bacteria and protozoa.; Target: Antibacterial; Antiparasitic; Metronidazole is a nitroimidazole antibiotic medication used particularly for anaerobic bacteria and protozoa. MedChem Express HY-B0318
      Metronidazole is a nitroimidazole antibiotic medication used particularly for anaerobic bacteria and protozoa.;Target: Antibacterial; AntiparasiticMetronidazole is a nitroimidazole antibiotic medication used particularly for anaerobic bacteria and protozoa. Metronidazole is an antibiotic, amebicide, and antiprotozoal.[1] It is the drug of choice for first episodes of mild-to-moderate Clostridium difficile infection [2]. Metronidazole, taken up by diffusion, is selectively absorbed by anaerobic bacteria and sensitive protozoa. Once taken up by anaerobes, it is non-enzymatically reduced by reacting with reduced ferredoxin, which is generated by pyruvate oxido-reductase. Many of the reduced nitroso intermediates will form sulfinamides and thioether linkages with cysteine-bearing enzymes, thereby deactivating these critical enzymes. As many as 150 separate enzymes are affected.In addition or alternatively, the metronidazole metabolites are taken up into bacterial DNA, and form unstable MedChem Express HY-B0318
  • Gas Chromatography
    • Retention Index (Kovats):

      1518 (estimated with error: 89) NIST Spectra mainlib_352184, replib_76026, replib_236890, replib_335158
      1618 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 180 C; CAS no: 443481; Active phase: SE-30; Carrier gas: N2; Substrate: 1% se-30 on Anachrom ABS(80-100mesh); Data type: Kovats RI; Authors: Musumarra, G.; Scarlata, G.; Romano, G.; Cappello, G.; Clementi, S.; Giulietti, G., Qualitative organic analysis. Part 2. Identification of drugs by principal components analysis of standardized TLC data in four eluent systems and of retention indices on SE 30, J. Anal. Toxicol., 11, 1987, 154-163.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1643.7 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 12 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 40 C; End T: 290 C; Start time: 1 min; CAS no: 443481; Active phase: SE-30; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Neill, G.P.; Davies, N.W.; McLean, S., Automated screening procedure using gas chromatography-mass spectrometry for identification of drugs after their extraction from biological samples, J. Chromatogr., 565, 1991, 207-224.) NIST Spectra nist ri
      1592 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 443481; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Ardrey, R.E.; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. Chromatogr., 220, 1981, 195-252.) NIST Spectra nist ri
    • Retention Index (Linear):

      1590 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 1.8 m; Column type: Packed; Heat rate: 8 K/min; Start T: 130 C; End T: 290 C; End time: 8 min; Start time: 2 min; CAS no: 443481; Active phase: SE-30; Carrier gas: N2; Substrate: Chromosorb W; Data type: Linear RI; Authors: Perrigo, B.J.; Peel, H.W., The use of retention indices and temperature-programmed gas chromatography in analytical toxicology, J. Chromatogr. Sci., 19, 1981, 219-226.) NIST Spectra nist ri
      1669.6 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: Multi-step temperature program; T(initial)=60C; T(final)=270C; CAS no: 443481; Active phase: VF-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., 2008.) NIST Spectra nist ri

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

Density: 1.5±0.1 g/cm3
Boiling Point: 405.4±25.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.0 mmHg at 25°C
Enthalpy of Vaporization: 69.3±3.0 kJ/mol
Flash Point: 199.0±23.2 °C
Index of Refraction: 1.612
Molar Refractivity: 41.0±0.5 cm3
#H bond acceptors: 6
#H bond donors: 1
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: -0.01
ACD/LogD (pH 5.5): 0.05
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 25.34
ACD/LogD (pH 7.4): 0.05
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 25.38
Polar Surface Area: 84 Å2
Polarizability: 16.2±0.5 10-24cm3
Surface Tension: 60.5±7.0 dyne/cm
Molar Volume: 117.9±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) =  -0.00
    Log Kow (Exper. database match) =  -0.02
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  357.30  (Adapted Stein & Brown method)
    Melting Pt (deg C):  127.46  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.31E-007  (Modified Grain method)
    MP  (exp database):  160.5 deg C
    Subcooled liquid VP: 3.22E-006 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):  2.573e+004
       log Kow used: -0.02 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  9500 mg/L (25 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3.2779e+005 mg/L
    Wat Sol (Exper. database match) =  9500.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.69E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.147E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.02  (exp database)
  Log Kaw used:  -9.161  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.141
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5744
   Biowin2 (Non-Linear Model)     :   0.4414
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7365  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5533  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3250
   Biowin6 (MITI Non-Linear Model):   0.0739
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3396
 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):  0.000429 Pa (3.22E-006 mm Hg)
  Log Koa (Koawin est  ): 9.141
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.00699 
       Octanol/air (Koa) model:  0.00034 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.202 
       Mackay model           :  0.359 
       Octanol/air (Koa) model:  0.0265 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   9.3017 E-12 cm3/molecule-sec
      Half-Life =     1.150 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    13.799 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.28 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  10
      Log Koc:  1.000 

 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: -0.02 (expkow database)

 Volatilization from Water:
    Henry LC:  1.69E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 4.532E+007  hours   (1.888E+006 days)
    Half-Life from Model Lake : 4.944E+008  hours   (2.06E+007 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       0.000391        27.6         1000       
   Water     45.8            900          1000       
   Soil      54.1            1.8e+003     1000       
   Sediment  0.0887          8.1e+003     0          
     Persistence Time: 981 hr




                    

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