ChemSpider 2D Image | Niacin | C6H5NO2


  • Molecular FormulaC6H5NO2
  • Average mass123.109 Da
  • Monoisotopic mass123.032028 Da
  • ChemSpider ID913

More details:

Featured data source

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

200-441-0 [EINECS]
3-Pyridinecarboxylic acid [ACD/Index Name]
3-Pyridylcarboxylic acid
5-22-02-00057 [Beilstein]
5-22-02-00057 (Beilstein Handbook Reference) [Beilstein]
59-67-6 [RN]
Acide nicotinique [French] [ACD/IUPAC Name]
acido nicotinico [Spanish] [INN]
Acidum nicotinicum [Latin] [INN]

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

72309_FLUKA [DBID]
72311_FLUKA [DBID]
72312_FLUKA [DBID]
AE-641/00368010 [DBID]
AI3-18994 [DBID]
AIDS008918 [DBID]
AIDS-008918 [DBID]
bmse000104 [DBID]
BRN 0109591 [DBID]
  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      white crystalline powder Oxford University Chemical Safety Data (No longer updated) More details
      WHITE POWDER NIH Clinical Collection [SMR000059024]
    • Stability:

      Stable. Incompatible with strong oxidizing agents. May belight sensitive. Oxford University Chemical Safety Data (No longer updated) More details
    • Toxicity:

      ORL-RAT LD50 7000 mg kg-1, IPR-RAT LD50 730 mg kg-1, SCU-RAT LD50 5000 mg kg-1, ORL-MUS LD50 5000 mg kg-1 Oxford University Chemical Safety Data (No longer updated) More details
    • Safety:

      26 Alfa Aesar A12683
      26-60 Alfa Aesar A12683
      36 Alfa Aesar A12683
      H319 Alfa Aesar A12683
      H330,H319,H311,H301 LKT Labs [N3301]
      IRRITANT Matrix Scientific 082487
      Irritant/Light Sensitive/Store under Argon SynQuest 4H56-1-4A, 60871
      None. Oxford University Chemical Safety Data (No longer updated) More details
      P280-P264-P305+P351+P338-P337+P313 Alfa Aesar A12683
      R26-36-24/25 LKT Labs [N3301]
      T+, Xi, T LKT Labs [N3301]
      Warning Alfa Aesar A12683
      WARNING: Not for human consumption, may irriate skin & eyes. Alfa Aesar A12683
      WARNING: Not sold for human treatment, trials or use Alfa Aesar A12683
      Xi Abblis Chemicals AB1002056
    • Chemical Class:

      alkaloid Microsource [01500430]
    • Compound Source:

      widespread in the plant and fungal kingdom Microsource [01500430]
  • Gas Chromatography
    • Retention Index (Kovats):

      1144 (estimated with error: 89) NIST Spectra mainlib_233225, replib_312948, replib_155087, replib_291061, replib_379751
      1340 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column diameter: 0.53 mm; Column length: 30 m; Column type: Capillary; Start T: 130 C; CAS no: 59676; Active phase: DB-1; Carrier gas: N2; Phase thickness: 1.5 um; Data type: Kovats RI; Authors: Japp, M.; Gill, R.; Osselton, M.D., Comparison of drug retention indices determined on packed, wide bore capillary and narrow bore capillary columns, J. Forensic Sci., 32(6), 1987, 1574-1586.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1335 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 59676; 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):

      1335 (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: 59676; 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

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

Density: 1.3±0.1 g/cm3
Boiling Point: 292.5±13.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Enthalpy of Vaporization: 56.2±3.0 kJ/mol
Flash Point: 130.7±19.8 °C
Index of Refraction: 1.571
Molar Refractivity: 31.3±0.3 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 0.15
ACD/LogD (pH 5.5): -1.54
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -2.60
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 50 Å2
Polarizability: 12.4±0.5 10-24cm3
Surface Tension: 58.8±3.0 dyne/cm
Molar Volume: 95.2±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) =  0.69
    Log Kow (Exper. database match) =  0.36
       Exper. Ref:  Sangster (1993)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  257.62  (Adapted Stein & Brown method)
    Melting Pt (deg C):  63.27  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  9.36E-005  (Modified Grain method)
    MP  (exp database):  236.6 deg C
    Subcooled liquid VP: 0.018 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):  4.815e+004
       log Kow used: 0.36 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1.8e+004 mg/L (25 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  9678.1 mg/L
    Wat Sol (Exper. database match) =  18000.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.42E-010  atm-m3/mole
   Group Method:   5.11E-011  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  3.149E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.36  (exp database)
  Log Kaw used:  -8.236  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.596
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7112
   Biowin2 (Non-Linear Model)     :   0.8854
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8008  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6591  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7222
   Biowin6 (MITI Non-Linear Model):   0.8080
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.3610
 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):  2.4 Pa (0.018 mm Hg)
  Log Koa (Koawin est  ): 8.596
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.25E-006 
       Octanol/air (Koa) model:  9.68E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.51E-005 
       Mackay model           :  0.0001 
       Octanol/air (Koa) model:  0.00769 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.6570 E-12 cm3/molecule-sec
      Half-Life =    16.280 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 7.26E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  14.49
      Log Koc:  1.161 

 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: 0.36 (expkow database)

 Volatilization from Water:
    Henry LC:  5.11E-011 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 1.271E+007  hours   (5.297E+005 days)
    Half-Life from Model Lake : 1.387E+008  hours   (5.779E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               1.86  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       0.00119         391          1000       
   Water     37.8            360          1000       
   Soil      62.1            720          1000       
   Sediment  0.0707          3.24e+003    0          
     Persistence Time: 587 hr


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