ChemSpider 2D Image | Phenazopyridine | C11H11N5

Phenazopyridine

  • Molecular FormulaC11H11N5
  • Average mass213.238 Da
  • Monoisotopic mass213.101440 Da
  • ChemSpider ID4592

  • Double-bond stereo - Double-bond stereo

More details:

Featured data source
The Merck Index Online

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

2,6-Diamino-3-(phenylazo)pyridine
2,6-Pyridinediamine, 3-[(E)-2-phenyldiazenyl]- [ACD/Index Name]
2,6-Pyridinediamine, 3-[(E)-phenylazo]-
2-Pyridinamine, 1,6-dihydro-6-imino-3-[(E)-2-phenyldiazenyl]- [ACD/Index Name]
3-(Phenylazo)-2,6-pyridinediamine
3-[(E)-Phenyldiazenyl]-2,6-pyridindiamin [German] [ACD/IUPAC Name]
3-[(E)-Phenyldiazenyl]-2,6-pyridinediamine [ACD/IUPAC Name]
3-[(E)-Phényldiazényl]-2,6-pyridinediamine [French] [ACD/IUPAC Name]
3-[(E)-Phenyldiazenyl]pyridine-2,6-diamine
6-Imino-3-[(E)-phenyldiazenyl]-1,6-dihydro-2-pyridinamin [German] [ACD/IUPAC Name]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

357 [DBID]
184497 [DBID]
AIDS084670 [DBID]
AIDS-084670 [DBID]
BRN 0184497 [DBID]
C07429 [DBID]
DivK1c_000811 [DBID]
HSDB 3153 [DBID]
KBio1_000811 [DBID]
KBio2_001493 [DBID]
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  • Experimental Physico-chemical Properties
  • Miscellaneous

    • Safety:

      G04BX06 Wikidata Q3114549

    • Chemical Class:

      A diaminopyridine that is 2,6-diaminopyridine substituted at position 3 by a phenylazo group. A local anesthetic that has topical analgesic effect on mucosa lining of the urinary tract. Its use is lim ited by problems with toxicity (primarily blood disorders) and potential carcinogenicity. ChEBI CHEBI:71416
  • Gas Chromatography

    • Retention Index (Kovats):

      2154 (estimated with error: 83) NIST Spectra mainlib_290949, replib_232445, replib_379799

    • Retention Index (Normal Alkane):

      2280 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 2 m; Column type: Packed; Heat rate: 5 K/min; Start T: 150 C; End T: 300 C; CAS no: 94780; Active phase: OV-1; Substrate: Gas Chrom P; Data type: Normal alkane RI; Authors: Marozzi, E.; Gambaro, V.; Saligari, E.; Mariani, R.; Lodi, F., Use of the retention index in gas chromatographic studies of drugs, J. Anal. Toxicol., 6, 1982, 185-192.) NIST Spectra nist ri
      2290 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 2 m; Column type: Packed; Heat rate: 5 K/min; Start T: 150 C; End T: 300 C; CAS no: 94780; Active phase: SE-30; Substrate: Gas Chrom P; Data type: Normal alkane RI; Authors: Marozzi, E.; Gambaro, V.; Saligari, E.; Mariani, R.; Lodi, F., Use of the retention index in gas chromatographic studies of drugs, J. Anal. Toxicol., 6, 1982, 185-192.) NIST Spectra nist ri
      2345 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 94780; 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
      2346 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 94780; 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):

      2345 (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: 94780; 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
      2375 (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: 94780; 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: 1.3±0.1 g/cm3
Boiling Point: 277.4±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Enthalpy of Vaporization: 51.6±3.0 kJ/mol
Flash Point: 121.5±30.1 °C
Index of Refraction: 1.688
Molar Refractivity: 61.1±0.5 cm3
#H bond acceptors: 5
#H bond donors: 4
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.31
ACD/LogD (pH 5.5): -0.05
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 4.78
ACD/LogD (pH 7.4): 1.25
ACD/BCF (pH 7.4): 4.74
ACD/KOC (pH 7.4): 94.36
Polar Surface Area: 87 Å2
Polarizability: 24.2±0.5 10-24cm3
Surface Tension: 58.3±7.0 dyne/cm
Molar Volume: 160.4±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) =  2.77

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  391.24  (Adapted Stein & Brown method)
    Melting Pt (deg C):  143.13  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  9.6E-007  (Modified Grain method)
    MP  (exp database):  139 deg C
    Subcooled liquid VP: 1.36E-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):  59.22
       log Kow used: 2.77 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  30308 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Anilines (amino-meta)

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.40E-015  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.548E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.77  (KowWin est)
  Log Kaw used:  -13.008  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  15.778
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :  -0.0898
   Biowin2 (Non-Linear Model)     :   0.0000
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.9655  (months      )
   Biowin4 (Primary Survey Model) :   3.2567  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.2595
   Biowin6 (MITI Non-Linear Model):   0.0000
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4717
 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):  0.00181 Pa (1.36E-005 mm Hg)
  Log Koa (Koawin est  ): 15.778
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.00165 
       Octanol/air (Koa) model:  1.47E+003 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0564 
       Mackay model           :  0.117 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 200.0000 E-12 cm3/molecule-sec
      Half-Life =     0.053 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.642 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0866 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  874.4
      Log Koc:  2.942 

 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 = 1.000 (BCF = 10)
       log Kow used: 2.77 (estimated)

 Volatilization from Water:
    Henry LC:  2.4E-015 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.562E+011  hours   (1.484E+010 days)
    Half-Life from Model Lake : 3.886E+012  hours   (1.619E+011 days)

 Removal In Wastewater Treatment:
    Total removal:               4.15  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     4.04  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       1.36e-008       1.28         1000       
   Water     12.1            1.44e+003    1000       
   Soil      87.7            2.88e+003    1000       
   Sediment  0.179           1.3e+004     0          
     Persistence Time: 2.56e+003 hr

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