ChemSpider 2D Image | Benzocaine | C9H11NO2

Benzocaine

  • Molecular FormulaC9H11NO2
  • Average mass165.189 Da
  • Monoisotopic mass165.078979 Da
  • ChemSpider ID13854242

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Benzocaine [USP] [Wiki]
4-Aminobenzoate d'éthyle [French] [ACD/IUPAC Name]
94-09-7 [RN]
Benzocaina
Benzocainum
benzocainum [INN_la]
Benzoic acid, 4-amino-, ethyl ester [ACD/Index Name]
Ethyl 4-aminobenzoate [ACD/IUPAC Name]
Ethyl-4-aminobenzoat [German] [ACD/IUPAC Name]
(p-(Ethoxycarbonyl)phenylamine
More...

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

CHEBI:116735 [DBID]
06952_FLUKA [DBID]
112909_ALDRICH [DBID]
B7150_SIAL [DBID]
E1501_SIGMA [DBID]
  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      white odourless crystals Oxford University Chemical Safety Data (No longer updated) More details
    • Stability:

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 Oxford University Chemical Safety Data (No longer updated) More details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

      IRP-MUS LD50 216 mg kg-1 Oxford University Chemical Safety Data (No longer updated) More details
    • Safety:

      24-26-37 Alfa Aesar A12754
      36-43 Alfa Aesar A12754
      Danger Biosynth Q-200689
      GHS07 Biosynth Q-200689
      H315; H317; H319; H335 Biosynth Q-200689
      H319-H317 Alfa Aesar A12754
      IRRITANT Matrix Scientific 075318
      P261; P280; P302+P352; P304+P340; P305+P351+P338; P312 Biosynth Q-200689
      P261-P280-P305+P351+P338-P363-P321-P501a Alfa Aesar A12754
      Safety glasses. Oxford University Chemical Safety Data (No longer updated) More details
      Warning Alfa Aesar A12754
      WARNING: Irritates lungs, eyes, skin Alfa Aesar A12754
      WARNING: Irritates skin and eyes Alfa Aesar A12754
      Xi Abblis Chemicals AB1008006
    • Compound Source:

      synthetic Microsource [01500139]
  • Gas Chromatography
    • Retention Index (Kovats):

      1471 (estimated with error: 89) NIST Spectra mainlib_113824, replib_228514, replib_250591, replib_312383, replib_379406
      1578 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column diameter: 0.53 mm; Column type: Packed; Start T: 210 C; CAS no: 94097; Active phase: SE-30; Carrier gas: N2; Substrate: AW-DMCS; Data type: Kovats RI; Authors: Oyama, N.; Sano, T.; Syoyama, M.; Maeda, K., Studies on systematic analysis of poisonous compounds in forensic chemistry. II. Application of capillary column gas chromatography to substance identification by means of retention indices, Eisei Kagaku, 33(5), 1987, 342-348.) NIST Spectra nist ri
      1561 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 1 m; Column type: Packed; Start T: 210 C; CAS no: 94097; Active phase: SE-30; Carrier gas: N2; Substrate: Inerton N AW (1), NaCl (2), and steel powder (3); Data type: Kovats RI; Authors: Lenchik, N.V.; Rudenko, B.A.; Dzhabarov, D.N., Gas chromatographic analysis of nitrogen-containing pharmaceticals using a thermoaerosol detector and non-porous sorbents, Zh. Anal. Khim., , 1986, 1438-1443.) NIST Spectra nist ri
      1526 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.49 mm; Column length: 25 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 100 C; End T: 275 C; End time: 15 min; Start time: 2 min; CAS no: 94097; Active phase: SE-30; Phase thickness: 1.14 um; Data type: Kovats RI; Authors: Schepers, P.; Wijsbeek, J.; Franke, J.P.; de Zeeuw, R.A., Applicability of capillary gas chromatography to substance identification in toxicology by means of retention indices, J. Forensic Sci., 27(1), 1982, 49-60.) NIST Spectra nist ri
      1528 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 12 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 120 C; End T: 300 C; End time: 12 min; Start time: 2 min; CAS no: 94097; Active phase: SE-30; Carrier gas: He; Phase thickness: 0.45 um; Data type: Kovats RI; Authors: Schepers, P.; Wijsbeek, J.; Franke, J.P.; de Zeeuw, R.A., Applicability of capillary gas chromatography to substance identification in toxicology by means of retention indices, J. Forensic Sci., 27(1), 1982, 49-60.) NIST Spectra nist ri
      1560 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 6 ft; Column type: Packed; CAS no: 94097; Active phase: OV-101; Carrier gas: N2; Substrate: Chromosorb W; Data type: Kovats RI; Authors: McLinden, V.J.; Stenhouse, A.M., A chromatography system for drug identification, Forensic Sci. Int., 13, 1979, 71-79.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1555 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Description: 60 0C (2.5 min) ^ 30 0C/min -> 190 0C ^ 7 0C/min -> 295 9C (7 min); CAS no: 94097; Active phase: CP Sil 5 CB; Carrier gas: Helium; Phase thickness: 0.48 um; Data type: Normal alkane RI; Authors: Bogusz, M.; Wijsbeek, J.; Franke, J.P.; de Zeeuw, R.A., Applicability of capillary gas chromatography to systematic toxicological analysis: occurence of concentration-dependent retention behavior, J. Analyt. Toxicol., 7(4), 1983, 188-192., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 100 C; End T: 300 C; CAS no: 94097; Active phase: SE-30; Carrier gas: Nitrogen; Substrate: Chromosorb G AW DMCS (80-100 mesh); Data type: Normal alkane RI; Authors: MHA, Directorate of ForensicScience., Forensic Toxicology, 9999., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 94097; 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
      1535 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Packed; CAS no: 94097; Active phase: SE-30; Data type: Normal alkane RI; Authors: Bogusz, M.; Wijsbeek, J.; Franke, J.P.; de Zeeuw, R.A., Applicability of capillary gas chromatography to systematic toxicological analysis: occurence of concentration-dependent retention behavior, J. Analyt. Toxicol., 7(4), 1983, 188-192.) NIST Spectra nist ri
      1563 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 180 C; CAS no: 94097; Active phase: JXR; Data type: Normal alkane RI; Authors: von Buchi, J.; Lorini, V.; Perlia, X., Gaschromatographische Untersuchung einiger homologer Reihen von Lokalanaesthetica, Pharm. Acta Helv., 47(65), 1972, 377-393.) NIST Spectra nist ri
      1574 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 200 C; CAS no: 94097; Active phase: JXR; Data type: Normal alkane RI; Authors: von Buchi, J.; Lorini, V.; Perlia, X., Gaschromatographische Untersuchung einiger homologer Reihen von Lokalanaesthetica, Pharm. Acta Helv., 47(65), 1972, 377-393.) NIST Spectra nist ri
      1566.1 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 12.5 m; Column type: Capillary; Heat rate: 25 K/min; Start T: 75 C; End T: 320 C; End time: 2 min; CAS no: 94097; Active phase: Ultra-2; Phase thickness: 0.11 um; Data type: Normal alkane RI; Authors: Hemmersbach, P.; de la Torre, R., Review. Stimulants, narcotics and .beta.-blockers: 25 years of development in analytical techniques for doping control, J. Chromatogr. B, 687, 1996, 221-238.) NIST Spectra nist ri
      1561.7 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 12.5 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 110 C; End T: 290 C; End time: 6.5 min; Start time: 1 min; CAS no: 94097; Active phase: Ultra-2; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Watts, V.W.; Simonick, T.F., A retention index library for commonly encountered drugs and metabolites using tri-n-alkylamines as reference compounds, nitrogen-phosphorus detectors, and dual capillary chromatography, J. Anal. Toxicol., 11, 1987, 210-214.) NIST Spectra nist ri
    • Retention Index (Linear):

      1545 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.32 mm; Column length: 12.5 m; Column type: Capillary; Description: 135C(4min) => 13C/min => 200C => 8C/min => 240C => 6C/min => 312C (6min); CAS no: 94097; Active phase: Methyl Silicone; Phase thickness: 1.5 um; Data type: Linear RI; Authors: University Centre for Pharmacy, University of Groninger, Systematic toxicological analysis, 2003.) NIST Spectra nist ri
      1516 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.53 mm; Column length: 12 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 120 C; End T: 250 C; CAS no: 94097; Active phase: CBP-1; Carrier gas: N2; Data type: Linear RI; Authors: Oyama, N.; Sano, T.; Syoyama, M.; Maeda, K., Studies on systematic analysis of poisonous compounds in forensic chemistry. II. Application of capillary column gas chromatography to substance identification by means of retention indices, Eisei Kagaku, 33(5), 1987, 342-348.) NIST Spectra nist ri
      1563 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.53 mm; Column type: Packed; Heat rate: 2 K/min; Start T: 80 C; End T: 220 C; CAS no: 94097; Active phase: OV-1; Carrier gas: N2; Substrate: AW-DMCS; Data type: Linear RI; Authors: Oyama, N.; Sano, T.; Syoyama, M.; Maeda, K., Studies on systematic analysis of poisonous compounds in forensic chemistry. II. Application of capillary column gas chromatography to substance identification by means of retention indices, Eisei Kagaku, 33(5), 1987, 342-348.) NIST Spectra nist ri
      1523 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 120 C; End T: 280 C; End time: 5 min; CAS no: 94097; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Perrigo, B.J.; Ballantyne, D.J.; Peel, H.W., Condierations in developing a data base for drugs on a DBI capillary column, J. Can. Soc. Forensic Sci., 17(2), 1984, 41-49., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 15 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 120 C; End T: 280 C; End time: 5 min; CAS no: 94097; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Perrigo, B.J.; Peel, H.W.; Ballantyne, D.J., Use of Dual-Column Fused-Silica Capillary Gas Chromatography in Combination with Detector Response Factors for Analytical Toxicology., J. Chromatogr., 341, 1985, 81-88.) NIST Spectra nist ri
      1513 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 100 C; End T: 295 C; CAS no: 94097; Active phase: SE-30; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Anderson, W.H.; Stafford, D.T., Applications of capillary gas chromatography in routine toxicological analyses, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 6, 1983, 247-254.) NIST Spectra nist ri
      1530 (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: 94097; 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: 1.1±0.1 g/cm3
Boiling Point: 310.7±15.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.7 mmHg at 25°C
Enthalpy of Vaporization: 55.2±3.0 kJ/mol
Flash Point: 164.2±17.9 °C
Index of Refraction: 1.555
Molar Refractivity: 46.9±0.3 cm3
#H bond acceptors: 3
#H bond donors: 2
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 1.95
ACD/LogD (pH 5.5): 1.83
ACD/BCF (pH 5.5): 14.50
ACD/KOC (pH 5.5): 235.97
ACD/LogD (pH 7.4): 1.83
ACD/BCF (pH 7.4): 14.52
ACD/KOC (pH 7.4): 236.21
Polar Surface Area: 52 Å2
Polarizability: 18.6±0.5 10-24cm3
Surface Tension: 44.7±3.0 dyne/cm
Molar Volume: 146.1±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) =  1.80
    Log Kow (Exper. database match) =  1.86
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  279.90  (Adapted Stein & Brown method)
    Melting Pt (deg C):  66.17  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000258  (Modified Grain method)
    MP  (exp database):  92 deg C
    BP  (exp database):  310 deg C
    Subcooled liquid VP: 0.00115 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):  1671
       log Kow used: 1.86 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1310 mg/L (30 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1811.7 mg/L
    Wat Sol (Exper. database match) =  1310.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Aromatic Amines
       Esters

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.63E-008  atm-m3/mole
   Group Method:   9.96E-009  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  3.356E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.86  (exp database)
  Log Kaw used:  -6.176  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.036
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6093
   Biowin2 (Non-Linear Model)     :   0.9446
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8394  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7300  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4894
   Biowin6 (MITI Non-Linear Model):   0.4765
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.2948
 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):  0.153 Pa (0.00115 mm Hg)
  Log Koa (Koawin est  ): 8.036
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.96E-005 
       Octanol/air (Koa) model:  2.67E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000706 
       Mackay model           :  0.00156 
       Octanol/air (Koa) model:  0.00213 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  36.4601 E-12 cm3/molecule-sec
      Half-Life =     0.293 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.520 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.00113 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  38.7
      Log Koc:  1.588 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  2.399E-003  L/mol-sec
  Kb Half-Life at pH 8:       9.156  years  
  Kb Half-Life at pH 7:      91.557  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.732 (BCF = 5.398)
       log Kow used: 1.86 (expkow database)

 Volatilization from Water:
    Henry LC:  9.96E-009 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 7.555E+004  hours   (3148 days)
    Half-Life from Model Lake : 8.243E+005  hours   (3.435E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               2.14  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     2.04  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       0.155           7.04         1000       
   Water     26.3            360          1000       
   Soil      73.5            720          1000       
   Sediment  0.0806          3.24e+003    0          
     Persistence Time: 608 hr




                    

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