allobarbital C10H12N2O3 structure – Flashcards

Flashcard maker : Lewis Gardner

Molecular Formula C10H12N2O3
Average mass 208.214 Da
Density 1.1±0.1 g/cm3
Boiling Point
Flash Point
Molar Refractivity 52.8±0.3 cm3
Polarizability 20.9±0.5 10-24cm3
Surface Tension 34.4±3.0 dyne/cm
Molar Volume 184.8±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      172-173 °C MolMall 12834
      172 °C Jean-Claude Bradley Open Melting Point Dataset 17225, 21416
      170-173 °C LabNetwork LN01272375
  • Gas Chromatography
    • Retention Index (Kovats):

      1730 (estimated with error: 89) NIST Spectra mainlib_9575, replib_232271, replib_379464, replib_250598
      1595 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column type: Packed; Heat rate: 30 K/min; Start T: 100 C; End T: 310 C; End time: 5 min; Start time: 3 min; CAS no: 52437; Active phase: SE-30; Carrier gas: N2; Data type: Kovats RI; Authors: Maurer, H.H., Identification and differentiation of barbiturates, other sedative-hypnotics and their metabolites in urine integrated in a general screening procedure using computerized gas chromatography-mass spectrometry, J. Chromatogr., 530, 1990, 307-326.) NIST Spectra nist ri
      1609 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.20 mm; Column length: 25 m; Column type: Capillary; Start T: 250 C; CAS no: 52437; Active phase: SPB-1; Carrier gas: He; Data type: Kovats RI; Authors: Lora-Tamayo, C.; Rams, M.A.; Chacon, J.M.R., Gas Chromatographic Data for 187 Nitrogen- or Phosphorus-Containing Drugs and Metabolites of Toxicological Interest Analysed on Methyl Silicone Capillary Columns, J. Chromatogr., 374, 1986, 73-85.) NIST Spectra nist ri
      1577 (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: 52437; 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., 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: 52437; 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
      1586 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Packed; Start T: 200 C; CAS no: 52437; Active phase: SE-30; Data type: Kovats RI; Authors: Stead, A.H.; Gill, R.; Evans, A.T.; Moffat, A.C., Predictions of gas chromatographic retention characteristics of barbiturates from molecular structure, J. Chromatogr., 234, 1982, 277-283.) NIST Spectra nist ri
      1610 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Packed; Start T: 200 C; CAS no: 52437; Active phase: OV-1; Data type: Kovats RI; Authors: Berninger, H.; Moller, M.R., Retentionsindices zur gaschromatographischen Identifizierung von Arzneimitteln, Arch. Toxicol., 37, 1977, 295-305.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1575 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column length: 2 m; Column type: Packed; Heat rate: 2.5 K/min; Start T: 120 C; End T: 200 C; CAS no: 52437; 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., Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column type: Capillary; Start T: 100 C; End T: 300 C; CAS no: 52437; Active phase: BP-1; Data type: Normal alkane RI; Authors: MHA, Directorate of ForensicScience., Forensic Toxicology, 9999.) NIST Spectra nist ri
      1606 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 52437; Active phase: Polydimethyl siloxanes; Data type: Normal alkane RI; Authors: Schutz, H.; Wollrab A., The significance of the retention index in toxicologic analysis II, Pharmazie in unzerer Zeit, 17(4), 1988, 97-101., Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column type: Other; CAS no: 52437; 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
      1564 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.53 mm; Column length: 10 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 130 C; End T: 230 C; CAS no: 52437; Active phase: DB-1; Carrier gas: He; Phase thickness: 2.65 um; Data type: Normal alkane RI; Authors: Anderson, W.H.; Fuller, D.C., A simplified procedure for the isolation, characterization, and identification of weak acid and neutral drugs from whole blood, J. Anal. Toxicol., 11, 1987, 198-204.) NIST Spectra nist ri
      1604 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column length: 6 ft; 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: 52437; Active phase: SE-30; Carrier gas: N2; Substrate: Chromosorb W AW DMS; Data type: Normal alkane RI; Authors: Peel, H.W.; Perrigo, B., A practical gas chromatographic screening procedure for toxicological analysis, Can.Soc.Forens.Sci.J., 9(2), 1975, 69-74., Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column length: 6 ft; 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: 52437; Active phase: SE-30; Carrier gas: Nitrogen; Substrate: Chromosorb W AW DMS (80-100 mesh); Data type: Normal alkane RI; Authors: Peel, H.W.; Perrigo, B., A practical gas chromatographic screening procedure for toxicological analysis, Can. Soc. Forens. Sci. J., 9(2), 1976, 69-74.) NIST Spectra nist ri
      1599 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column length: 1.5 m; Column type: Packed; CAS no: 52437; Active phase: Apolane; Data type: Normal alkane RI; Authors: Huggett, A.; Andrews, P.; Flanagan, R.J., Rapid Micro-Method for the Measurement of Paracetamol in Blood Plasma or Serum Using Gas-Liquid Chromatography with Flame-Ionisation Detection., J. Chromatogr., 209, 1981, 67-76.) NIST Spectra nist ri
    • Retention Index (Linear):

      1609 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.75 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 160 C; End T: 280 C; End time: 12 min; CAS no: 52437; Active phase: SPB-1; Carrier gas: He; Phase thickness: 1.0 um; Data type: Linear RI; Authors: Christ, D.W.; Noomano, P.; Rosas, M.; Rhone, D., Retention indices by wide-bore capillary gas chromatography with nitrogen-phosphorus detection, J. Anal. Toxicol., 12, 1988, 84-88.) NIST Spectra nist ri
      1575 (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: 52437; 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: 52437; 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
      1605 (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: 52437; 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:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction: 1.483
Molar Refractivity: 52.8±0.3 cm3
#H bond acceptors: 5
#H bond donors: 2
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 1.11
ACD/LogD (pH 5.5): 1.08
ACD/BCF (pH 5.5): 3.88
ACD/KOC (pH 5.5): 91.64
ACD/LogD (pH 7.4): 0.90
ACD/BCF (pH 7.4): 2.56
ACD/KOC (pH 7.4): 60.45
Polar Surface Area: 75 Å2
Polarizability: 20.9±0.5 10-24cm3
Surface Tension: 34.4±3.0 dyne/cm
Molar Volume: 184.8±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) = 1.31
 Log Kow (Exper. database match) = 1.15
 Exper. Ref: Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 529.32 (Adapted Stein & Brown method)
 Melting Pt (deg C): 226.29 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 1.49E-010 (Modified Grain method)
 MP (exp database): 172 deg C
 Subcooled liquid VP: 4.94E-009 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): 4136
 log Kow used: 1.15 (expkow database)
 no-melting pt equation used
 Water Sol (Exper. database match) = 1810 mg/L (25 deg C)
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1366.1 mg/L
 Wat Sol (Exper. database match) = 1810.00
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 3.53E-013 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 9.870E-015 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 1.15 (exp database)
 Log Kaw used: -10.841 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 11.991
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.4645
 Biowin2 (Non-Linear Model) : 0.1583
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.5269 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.3939 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.2963
 Biowin6 (MITI Non-Linear Model): 0.1134
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.1127
 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): 6.59E-007 Pa (4.94E-009 mm Hg)
 Log Koa (Koawin est ): 11.991
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 4.55 
 Octanol/air (Koa) model: 0.24 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.994 
 Mackay model : 0.997 
 Octanol/air (Koa) model: 0.951 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 61.8852 E-12 cm3/molecule-sec
 Half-Life = 0.173 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 2.074 Hrs
 Ozone Reaction:
 OVERALL Ozone Rate Constant = 2.400000 E-17 cm3/molecule-sec
 Half-Life = 0.477 Days (at 7E11 mol/cm3)
 Half-Life = 11.460 Hrs
 Fraction sorbed to airborne particulates (phi): 0.996 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 68.36
 Log Koc: 1.835 

 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 = 0.185 (BCF = 1.533)
 log Kow used: 1.15 (expkow database)

 Volatilization from Water:
 Henry LC: 3.53E-013 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 2.393E+009 hours (9.972E+007 days)
 Half-Life from Model Lake : 2.611E+010 hours (1.088E+009 days)

 Removal In Wastewater Treatment:
 Total removal: 1.90 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.81 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 0.000278 3.05 1000 
 Water 38.8 900 1000 
 Soil 61.1 1.8e+003 1000 
 Sediment 0.0849 8.1e+003 0 
 Persistence Time: 1.08e+003 hr




 

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