3-Methylthiophene-2-aldehyde C6H6OS structure

C6H6OS structure
Molecular Formula C6H6OS
Average mass 126.176 Da
Density 1.2±0.1 g/cm3
Boiling Point 216.0±20.0 °C at 760 mmHg
Flash Point 82.2±0.0 °C
Molar Refractivity 36.2±0.3 cm3
Polarizability 14.4±0.5 10-24cm3
Surface Tension 42.7±3.0 dyne/cm
Molar Volume 106.9±3.0 cm3
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      Not Available Novochemy
      [NC-13934]
    • Safety:

      20/21/22 Novochemy
      [NC-13934]
      20/21/36/37/39 Novochemy
      [NC-13934]
      26-37 Alfa Aesar A13961, L14741
      36/37/38 Alfa Aesar A13961, L14741
      GHS07; GHS09 Novochemy
      [NC-13934]
      H315-H319-H335 Alfa Aesar A13961, L14741
      H332; H403 Novochemy
      [NC-13934]
      IRRITANT, AIR SENSITIVE Matrix Scientific 012536
      Irritant/Store under Argon/Keep Cold SynQuest 64502, 6H15-1-X3
      P261-P280-P305+P351+P338-P304+P340-P405-P501a Alfa Aesar A13961, L14741
      P332+P313; P305+P351+P338 Novochemy
      [NC-13934]
      R52/53 Novochemy
      [NC-13934]
      Warning Alfa Aesar A13961, L14741
      Warning Novochemy
      [NC-13934]
      WARNING: Irritates lungs, eyes, skin Alfa Aesar A13961, L14741
  • Gas Chromatography
    • Retention Index (Kovats):

      1072 (estimated with error: 89) NIST Spectra mainlib_343061, replib_117980
      1086 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Start T: 100 C; CAS no: 5834162; Active phase: SE-30; Carrier gas: He; Phase thickness: 0.50 um; Data type: Kovats RI; Authors: Golovnya, R.V.; Misharina, T.A.; Beletskiy, I.V., Influence of methyl, formyl and acetyl groups on retention of substituted furans and thiophenes in capillary GC, Chromatographia, 34(9/10), 1992, 497-501.) NIST Spectra nist ri
      1090 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Start T: 100 C; CAS no: 5834162; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.50 um; Data type: Kovats RI; Authors: Golovnya, R.V.; Misharina, T.A.; Beletskiy, I.V., Influence of methyl, formyl and acetyl groups on retention of substituted furans and thiophenes in capillary GC, Chromatographia, 34(9/10), 1992, 497-501.) NIST Spectra nist ri
      1761 (Program type: Isothermal; Col… (show more) umn class: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 100 C; CAS no: 5834162; Active phase: Carbowax 40M; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Golovnya, R.V.; Misharina, T.A.; Beletskiy, I.V., Influence of methyl, formyl and acetyl groups on retention of substituted furans and thiophenes in capillary GC, Chromatographia, 34(9/10), 1992, 497-501.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1095.5 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.03 in; Column length: 1000 ft; Column type: Capillary; Heat rate: 4 K/min; Start T: 80 C; End T: 225 C; Start time: 5 min; CAS no: 5834162; Active phase: SF-96; Data type: Normal alkane RI; Authors: Mussinan, C.J.; Walradt, J.P., Volatile constituents of pressure cooked pork liver, J. Agric. Food Chem., 22(5), 1974, 827-831.) NIST Spectra nist ri
      1092.1 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 225 C; Start time: 5 min; CAS no: 5834162; Active phase: DB-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: MacLeod, G.; Ames, J.M., Gas chromatography-mass spectrometry of the volatile components of cooked Scorzonera, Phytochemistry, 30(3), 1991, 883-888.) NIST Spectra nist ri
      1104 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column length: 5.6 m; Column type: Packed; Description: 60C(7min), 100C(7min), 150C isothermal; CAS no: 5834162; Active phase: Apiezon M; Carrier gas: N2; Substrate: Chromosorb W AW/DMCS; Data type: Normal alkane RI; Authors: Golovnya, R.V.; Misharina, T.A.; Garbuzov, V.G.; Medvedyev, F.A., Volatile sulfur containing compounds in simulated meat flavour and their comparison with the constituents of natural aroma, Nahrung, 27(3), 1983, 237-249.) NIST Spectra nist ri
    • Retention Index (Linear):

      1081 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.18 mm; Column length: 20 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 60 C; End T: 220 C; End time: 5 min; Start time: 3 min; CAS no: 5834162; Active phase: DB-1; Phase thickness: 0.18 um; Data type: Linear RI; Authors: Rochat S.; de Saint Laumer J.Y.; Chaintreau A., Analysis of sulfur compounds from the in-oven roast beef aroma by comprehensive two-dimensional gas chromatography, J. Chromatogr. A, 1147, 2007, 85-94.) NIST Spectra nist ri
      1083 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.18 mm; Column length: 20 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 60 C; End T: 220 C; End time: 5 min; Start time: 3 min; CAS no: 5834162; Active phase: DB-1; Phase thickness: 0.18 um; Data type: Linear RI; Authors: Rochat S.; de Saint Laumer J.Y.; Chaintreau A., Analysis of sulfur compounds from the in-oven roast beef aroma by comprehensive two-dimensional gas chromatography, J. Chromatogr. A, 1147, 2007, 85-94.) NIST Spectra nist ri
      1090 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 220 C; End time: 10 min; CAS no: 5834162; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Zhang, Y.; Ho, C.-T., Formation of meatlike aroma compounds from thermal reaction of inosine 5′-monophosphate with cysteine and glutathione, J. Agric. Food Chem., 39, 1991, 1145-1148., Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 200 C; CAS no: 5834162; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Misharina, T.A.; Golovnya, R.V.; Beletsky, I.V., Sorption properties of heterocyclic compounds differing by heteroatom in capillary gas chromatography, Russ. Chem. Bull. (Engl. Transl.), 42(7), 1993, 1167-1170, In original 1224-1227.) NIST Spectra nist ri
      1089 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 200 C; CAS no: 5834162; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.50 um; Data type: Linear RI; Authors: Golovnya, R.V.; Misharina, T.A.; Beletskiy, I.V., Influence of methyl, formyl and acetyl groups on retention of substituted furans and thiophenes in capillary GC, Chromatographia, 34(9/10), 1992, 497-501.) NIST Spectra nist ri
      1092 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 220 C; End time: 10 min; CAS no: 5834162; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Zhang, Y.; Ho, C.-T., Comparison of the volatile compounds formed from the thermal reaction of glucose with cysteine and glutathione, J. Agric. Food Chem., 39, 1991, 760-763.) NIST Spectra nist ri
      1133 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 260 C; End time: 10 min; Start time: 2 min; CAS no: 5834162; Active phase: DB-5; Phase thickness: 1 um; Data type: Linear RI; Authors: Methven L.; Tsoukka M.; Oruna-Concha M.J.; Parker J.K.; Mottram D.S., Influence of sulfur amino acids on the volatile and nonvolatile components of cooked salmon (Salmo salar), J. Agric. Food Chem., 55, 2007, 1427-1436.) NIST Spectra nist ri
      1105 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Description: 40C(3min) =; 3C/min =; 180C=; 10C/min =; 260C(2min); CAS no: 5834162; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Moon, S.-Y.; Cliff, M.A.; Li-Chan, E.C.Y., Odour-active components of simulated beef flavour analysed by solid phase microextraction and gas chromatography-mass spectrometry and -olfactometry, Food Res. Int., 39, 2006, 294-308.) NIST Spectra nist ri
      1126 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 5 min; CAS no: 5834162; Active phase: BPX-5; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Bredie, W.L.P.; Mottram, D.S.; Guy, R.C.E., Effect of temperature and pH on the generation of flavor volatiles in extrusion cooking of wheat flour, J. Agric. Food Chem., 50, 2002, 1118-1125.) NIST Spectra nist ri
      1140 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 280 C; Start time: 2 min; CAS no: 5834162; Active phase: CP Sil 8 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S.; Campo, M.M.; Enser, M.; Mottram, D.S., Effect of lipid composition on meat-like model systems containing cysteine, ribose, and polyunsaturated fatty acids, J. Agric. Food Chem., 50, 2002, 1126-1132.) NIST Spectra nist ri
      1109 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 10 min; Start time: 5 min; CAS no: 5834162; Active phase: BPX-5; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Ames, J.M.; Guy, R.C.E.; Kipping, G.J., Effect of pH and temperature on the formation of volatile compounds in cysteine/reducing sugar/starch mixtures during extrusion cooking, J. Agric. Food Chem., 49, 2001, 1885-1894.) NIST Spectra nist ri
      1134 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 0C(5min) =; 40C/min =;40C (2min) =; 4C/min =;280C; CAS no: 5834162; Active phase: CP-Sil 8CB-MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., The effects of diet and breed on the volatile compounds of cooked lamb, Meat Sci., 55, 2000, 149-159.) NIST Spectra nist ri
      1121 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 5 min; CAS no: 5834162; Active phase: DB-5; Phase thickness: 1 um; Data type: Linear RI; Authors: Madruga, M.S.; Mottram, D.S., The effect of pH on the formation of volatile compounds produced by heating a model system containing 5′-imp and cysteine, J. Braz. Chem. Soc., 9(3), 1998, 261-271.) NIST Spectra nist ri
      1797 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 220 C; End time: 30 min; Start time: 5 min; CAS no: 5834162; Active phase: CP-Wax 52CB; Data type: Linear RI; Authors: Mahadevan, K.; Farmer, L., Key Odor Impact Compounds in Three Yeast Extract Pastes, J. Agric. Food Chem., 54, 2006, 7242-7250.) NIST Spectra nist ri
      1815 (Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 0C(5min)=>fast=>60C(5min)=>4C/min=>220C(20min); CAS no: 5834162; Active phase: CP-Wax 52CB; Phase thickness: 0.21 um; Data type: Linear RI; Authors: Madruga, M.S.; Mottram, D.S., The effect of pH on the formation of volatile compounds produced by heating a model system containing 5′-imp and cysteine, J. Braz. Chem. Soc., 9(3), 1998, 261-271.) NIST Spectra nist ri
      1765 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 200 C; CAS no: 5834162; Active phase: Carbowax 40M; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Golovnya, R.V.; Misharina, T.A.; Beletskiy, I.V., Influence of methyl, formyl and acetyl groups on retention of substituted furans and thiophenes in capillary GC, Chromatographia, 34(9/10), 1992, 497-501.) NIST Spectra nist ri
      1813 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 200 C; End time: 10 min; Start time: 5 min; CAS no: 5834162; Active phase: CP-WAX 57CB; Carrier gas: He; Data type: Linear RI; Authors: Whitfield, F.B.; Mottram, D.S.; Brock, S.; Puckey, D.J.; Salter, L.J., Effect of Phospholipid on the Formation of Volatile Heterocyclic Compounds in Heated Aqueous Solutions of Amino Acids and Ribose, J. Sci. Food Agric., 42, 1988, 261-272.) NIST Spectra nist ri
      1814 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 200 C; End time: 10 min; Start time: 5 min; CAS no: 5834162; Active phase: CP-WAX 57CB; Carrier gas: He; Data type: Linear RI; Authors: Whitfield, F.B.; Mottram, D.S.; Brock, S.; Puckey, D.J.; Salter, L.J., Effect of Phospholipid on the Formation of Volatile Heterocyclic Compounds in Heated Aqueous Solutions of Amino Acids and Ribose, J. Sci. Food Agric., 42, 1988, 261-272.) NIST Spectra nist ri

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

Density: 1.2±0.1 g/cm3
Boiling Point: 216.0±20.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.4 mmHg at 25°C
Enthalpy of Vaporization: 45.2±3.0 kJ/mol
Flash Point: 82.2±0.0 °C
Index of Refraction: 1.593
Molar Refractivity: 36.2±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 1.48
ACD/LogD (pH 5.5): 1.74
ACD/BCF (pH 5.5): 12.40
ACD/KOC (pH 5.5): 210.97
ACD/LogD (pH 7.4): 1.74
ACD/BCF (pH 7.4): 12.40
ACD/KOC (pH 7.4): 210.97
Polar Surface Area: 45 Å2
Polarizability: 14.4±0.5 10-24cm3
Surface Tension: 42.7±3.0 dyne/cm
Molar Volume: 106.9±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) = 2.08

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 211.17 (Adapted Stein & Brown method)
 Melting Pt (deg C): 27.51 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.18 (Modified Grain method)
 Subcooled liquid VP: 0.19 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): 1600
 log Kow used: 2.08 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 4541.7 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 8.05E-006 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 1.868E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.08 (KowWin est)
 Log Kaw used: -3.483 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 5.563
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 1.0268
 Biowin2 (Non-Linear Model) : 0.9999
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.8678 (weeks )
 Biowin4 (Primary Survey Model) : 3.7938 (days )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.8061
 Biowin6 (MITI Non-Linear Model): 0.8979
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.3960
 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): 25.3 Pa (0.19 mm Hg)
 Log Koa (Koawin est ): 5.563
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.18E-007 
 Octanol/air (Koa) model: 8.97E-008 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 4.28E-006 
 Mackay model : 9.47E-006 
 Octanol/air (Koa) model: 7.18E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 25.2068 E-12 cm3/molecule-sec
 Half-Life = 0.424 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 5.092 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 6.88E-006 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 29.29
 Log Koc: 1.467 

 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 = 0.900 (BCF = 7.94)
 log Kow used: 2.08 (estimated)

 Volatilization from Water:
 Henry LC: 8.05E-006 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 82.84 hours (3.452 days)
 Half-Life from Model Lake : 997.9 hours (41.58 days)

 Removal In Wastewater Treatment:
 Total removal: 2.77 percent
 Total biodegradation: 0.10 percent
 Total sludge adsorption: 2.22 percent
 Total to Air: 0.45 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 1.1 10.2 1000 
 Water 30.7 360 1000 
 Soil 68 720 1000 
 Sediment 0.119 3.24e+003 0 
 Persistence Time: 415 hr




 

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