ChemSpider 2D Image | Estazolam | C16H11ClN4

Estazolam

  • Molecular FormulaC16H11ClN4
  • Average mass294.738 Da
  • Monoisotopic mass294.067230 Da
  • ChemSpider ID3146

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

29975-16-4 [RN]
4H-[1,2,4]Triazolo[4,3-a][1,4]benzodiazepine, 8-chloro-6-phenyl- [ACD/Index Name]
8-Chlor-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin [German] [ACD/IUPAC Name]
8-Chloro-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine [ACD/IUPAC Name]
8-Chloro-6-phényl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazépine [French] [ACD/IUPAC Name]
8-Chloro-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine
Cannoc
Estazolam [Wiki]
Nemurel
Somnatrol
More...

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

BRN 1220868 [DBID]
CCRIS 1955 [DBID]
D00311 [DBID]
DEA No. 2756 [DBID]
E3638_SIGMA [DBID]
LS-7378 [DBID]
NSC 290818 [DBID]
NSC290818 [DBID]
U 33737 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
  • Gas Chromatography
    • Retention Index (Kovats):

      2532 (estimated with error: 89) NIST Spectra mainlib_247221, replib_335023, replib_312927
      2855 (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: 250 C; CAS no: 29975164; Active phase: DB-1; Carrier gas: N2; Phase thickness: 1.5 um; Data type: Kovats RI; Authors: Japp, M.; Garthwaite, K.; Geeson, A.V.; Osselton, M.D., Collection of Analytical Data for Benzodiazepines and Benzophenones, J. Chromatogr., 439, 1988, 317-339.) NIST Spectra nist ri
      2893 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column diameter: 0.22 mm; Column length: 25 m; Column type: Capillary; Start T: 250 C; CAS no: 29975164; Active phase: BP-1; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Japp, M.; Garthwaite, K.; Geeson, A.V.; Osselton, M.D., Collection of Analytical Data for Benzodiazepines and Benzophenones, J. Chromatogr., 439, 1988, 317-339.) NIST Spectra nist ri
      2930 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 280 C; CAS no: 29975164; 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):

      2897 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; Start T: 100 C; End T: 300 C; CAS no: 29975164; Active phase: BP-1; Data type: Normal alkane RI; Authors: MHA, Directorate of ForensicScience., Forensic Toxicology, 9999.) NIST Spectra nist ri
      2897.8 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 2 m; Column type: Packed; Heat rate: 10 K/min; Start T: 220 C; End T: 270 C; CAS no: 29975164; Active phase: OV-101; Substrate: Chromosorb (100-120 mesh); Data type: Normal alkane RI; Authors: Cailleux, A.; Turcant, A.; Premel-Cabic, A.; Allain, P., Identification and Quantitation of Neutral and Basic Drugs in Blood By Gas Chromatography and Mass Spectrometry, J. Chromatogr. Sci., 19, 1981, 163-176.) NIST Spectra nist ri
      2858.7 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 2.5 K/min; Start T: 210 C; End T: 285 C; CAS no: 29975164; Active phase: Ultra-2; Phase thickness: 0.52 um; Data type: Normal alkane RI; Authors: Gaillard, Y.; Gay-Montchamp, J.-P.; Ollagnier, M., Simultaneous screening and quantitation of alpidem, zolpidem, buspirone and benzodiazepines by dual-channel gas chromatography using electron-capture and nitrogen-phosphorus detection after solid-phase extraction, J. Chromatogr., 622, 1993, 197-208.) NIST Spectra nist ri
      2893 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 150 C; End T: 260 C; Start time: 1 min; CAS no: 29975164; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Zamechnik, J.; Ethier, J.-C.; Neville, G.A., Benzodiazepines- an extensive collection of mass spectra, J. Can. Soc. Forensic Sci., 22(3), 1989, 233-259.) NIST Spectra nist ri

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

Density: 1.4±0.1 g/cm3
Boiling Point: 489.9±55.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.2 mmHg at 25°C
Enthalpy of Vaporization: 75.6±3.0 kJ/mol
Flash Point: 250.1±31.5 °C
Index of Refraction: 1.728
Molar Refractivity: 83.8±0.5 cm3
#H bond acceptors: 4
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 3.25
ACD/LogD (pH 5.5): 2.50
ACD/BCF (pH 5.5): 46.45
ACD/KOC (pH 5.5): 542.97
ACD/LogD (pH 7.4): 2.50
ACD/BCF (pH 7.4): 46.49
ACD/KOC (pH 7.4): 543.35
Polar Surface Area: 43 Å2
Polarizability: 33.2±0.5 10-24cm3
Surface Tension: 55.9±7.0 dyne/cm
Molar Volume: 210.4±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) =  3.32

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  430.21  (Adapted Stein & Brown method)
    Melting Pt (deg C):  180.00  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  9.89E-009  (Modified Grain method)
    MP  (exp database):  228.5 deg C
    Subcooled liquid VP: 1.52E-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):  1.486
       log Kow used: 3.32 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.50738 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.85E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.581E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.32  (KowWin est)
  Log Kaw used:  -9.442  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.762
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5529
   Biowin2 (Non-Linear Model)     :   0.1989
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3632  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.2620  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.1403
   Biowin6 (MITI Non-Linear Model):   0.0052
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.2142
 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):  0.000203 Pa (1.52E-006 mm Hg)
  Log Koa (Koawin est  ): 12.762
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0148 
       Octanol/air (Koa) model:  1.42 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.348 
       Mackay model           :  0.542 
       Octanol/air (Koa) model:  0.991 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   7.6371 E-12 cm3/molecule-sec
      Half-Life =     1.401 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    16.806 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.445 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.301E+006
      Log Koc:  6.114 

 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 = 1.858 (BCF = 72.19)
       log Kow used: 3.32 (estimated)

 Volatilization from Water:
    Henry LC:  8.85E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.136E+008  hours   (4.732E+006 days)
    Half-Life from Model Lake : 1.239E+009  hours   (5.163E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               9.54  percent
    Total biodegradation:        0.16  percent
    Total sludge adsorption:     9.39  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       0.000243        33.6         1000       
   Water     11.9            900          1000       
   Soil      87.5            1.8e+003     1000       
   Sediment  0.566           8.1e+003     0          
     Persistence Time: 1.82e+003 hr




                    

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