ChemSpider 2D Image | 1-(5-Methyl-2-thienyl)ethanone | C7H8OS

1-(5-Methyl-2-thienyl)ethanone

  • Molecular FormulaC7H8OS
  • Average mass140.203 Da
  • Monoisotopic mass140.029587 Da
  • ChemSpider ID75479

More details:

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

1-(5-Meth​yl-2-thie​nyl)ethanone
1-(5-Methyl-2-thienyl)ethan-1-one
1-(5-Methyl-2-thienyl)ethanon [German] [ACD/IUPAC Name]
1-(5-Methyl-2-thienyl)ethanone [ACD/IUPAC Name]
1-(5-Méthyl-2-thiényl)éthanone [French] [ACD/IUPAC Name]
1-(5-Methylthien-2-yl)ethanone
1-(5-methylthiophen-2-yl)ethan-1-one
1-(5-Methylthiophen-2-yl)ethanone [ACD/IUPAC Name]
13679-74-8 [RN]
237-181-2 [EINECS]
More...

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

110854 [Beilstein] [DBID]
MFCD00014529 [DBID]
533610_ALDRICH [DBID]
AI3-15900 [DBID]
BRN 0110854 [DBID]
CCRIS 4693 [DBID]
ZINC02146674 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous

    • Safety:

      22 Alfa Aesar A11282
      23-36 Alfa Aesar A11282
      23-36-60 Alfa Aesar A11282
      CAUTION: May irritate eyes, skin, and respiratory tract Alfa Aesar A11282
      H302 Alfa Aesar A11282
      P264-P270-P301+P312-P330-P501a Alfa Aesar A11282
      Warning Alfa Aesar A11282

    • Chemical Class:

      A thiophene that is substituted by acetyl and methyl groups at positions 2 and 5, respectively. ChEBI CHEBI:173589
  • Gas Chromatography

    • Retention Index (Kovats):

      1119 (estimated with error: 89) NIST Spectra mainlib_133919, replib_234583, replib_249616

    • Retention Index (Normal Alkane):

      1185 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 13679748; Active phase: SE-30; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004.) NIST Spectra nist ri
      1170 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 13679748; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Misharina, T.A., Sorption regularities of sulfur- and oxygen-containing compounds in chromatography and their application in identification of volatile organic compounds, Diss. degree of Dr. Sci. (Chemistry), 1995, 52.) NIST Spectra nist ri
      1174 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 13679748; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Misharina, T.A., Sorption regularities of sulfur- and oxygen-containing compounds in chromatography and their application in identification of volatile organic compounds, Diss. degree of Dr. Sci. (Chemistry), 1995, 52.) NIST Spectra nist ri
      1204.9 (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: 13679748; 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
      1205.6 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 86.3 m; Column type: Capillary; CAS no: 13679748; Active phase: RTX-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Chen, Y.; Ho, C.-T., Effects of carosine on volatile generation from Maillard reaction of ribose and cysteine, J. Agric. Food Chem., 50, 2002, 2372-2376.) NIST Spectra nist ri
      1197 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 240 C; End time: 10 min; Start time: 3 min; CAS no: 13679748; Active phase: HP-5; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kubec, R.; Velisek, J.; Dolezal, M.; Kubelka, V., Sulfur-containing volatiles arising by thermal degradation of alliin and deoxyalliin, J. Agric. Food Chem., 45, 1997, 3580-3585.) NIST Spectra nist ri
      1836 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 13679748; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004.) NIST Spectra nist ri
      1914 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 190 C; Start time: 3 min; CAS no: 13679748; Active phase: HP-Innowax; Carrier gas: N2; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Kubec, R.; Velisek, J.; Dolezal, M.; Kubelka, V., Sulfur-containing volatiles arising by thermal degradation of alliin and deoxyalliin, J. Agric. Food Chem., 45, 1997, 3580-3585.) NIST Spectra nist ri
      1877.7 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.03 in; Column length: 500 ft; Column type: Capillary; CAS no: 13679748; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Wilson, R.A.; Mussinan, C.J.; Katz, I.; Sanderson, A., Isolation and identification of some sulfur chemicals present in pressure-cooked beef, J. Agric. Food Chem., 21(5), 1973, 873-876.) NIST Spectra nist ri
      1889.1 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.03 in; Column length: 500 ft; Column type: Capillary; CAS no: 13679748; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Wilson, R.A.; Mussinan, C.J.; Katz, I.; Sanderson, A., Isolation and identification of some sulfur chemicals present in pressure-cooked beef, J. Agric. Food Chem., 21(5), 1973, 873-876.) NIST Spectra nist ri

    • Retention Index (Linear):

      1123 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.31 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 250 C; CAS no: 13679748; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Misharina, T.A.; Golovnya, R.V.; Artamonova, M.P.; Zhuravskaya, N.K., Identification of volatile components of a model system with meat aroma, Zh. Anal. Khim., 47, 1992, 850-857.) NIST Spectra nist ri
      1130 (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: 13679748; 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
      1157 (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; CAS no: 13679748; Active phase: BP-5; Data type: Linear RI; Authors: Whitfield, F.B.; Mottram, D.S., Heterocyclic volatiles formed by heating cysteine or hydrogen sulfide with 4-hydroxy-5-methyl-3(2H)-furanone at pH 6.5, J. Agric. Food Chem., 49, 2001, 816-822., 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; Start time: 5 min; CAS no: 13679748; Active phase: BP-5; Carrier gas: He; Data type: Linear RI; Authors: Whitfield, F.B.; Mottram, D.S., Investigation of the reaction between 4-hydroxy-5-methyl-3(2H)-furanone and cysteine or hydrogen sulfide at pH 4.5, J. Agric. Food Chem., 47(4), 1999, 1626-1634.) NIST Spectra nist ri
      1145 (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: 13679748; 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
      1874 (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: 13679748; 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

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.1±0.1 g/cm3
Boiling Point: 234.9±20.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.5 mmHg at 25°C
Enthalpy of Vaporization: 47.2±3.0 kJ/mol
Flash Point: 95.8±21.8 °C
Index of Refraction: 1.536
Molar Refractivity: 39.5±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 1.71
ACD/LogD (pH 5.5): 1.93
ACD/BCF (pH 5.5): 17.36
ACD/KOC (pH 5.5): 268.44
ACD/LogD (pH 7.4): 1.93
ACD/BCF (pH 7.4): 17.36
ACD/KOC (pH 7.4): 268.44
Polar Surface Area: 45 Å2
Polarizability: 15.7±0.5 10-24cm3
Surface Tension: 37.3±3.0 dyne/cm
Molar Volume: 126.7±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) =  2.04

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  219.21  (Adapted Stein & Brown method)
    Melting Pt (deg C):  31.08  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0617  (Modified Grain method)
    MP  (exp database):  27.5 deg C
    BP  (exp database):  232.5 deg C
    Subcooled liquid VP: 0.065 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):  1510
       log Kow used: 2.04 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  5344.1 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   5.88E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.538E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.04  (KowWin est)
  Log Kaw used:  -3.619  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.659
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7423
   Biowin2 (Non-Linear Model)     :   0.7580
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7920  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5547  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4711
   Biowin6 (MITI Non-Linear Model):   0.4697
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.1980
 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):  8.67 Pa (0.065 mm Hg)
  Log Koa (Koawin est  ): 5.659
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.46E-007 
       Octanol/air (Koa) model:  1.12E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.25E-005 
       Mackay model           :  2.77E-005 
       Octanol/air (Koa) model:  8.96E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  22.9175 E-12 cm3/molecule-sec
      Half-Life =     0.467 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     5.601 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 2.01E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  40.57
      Log Koc:  1.608 

 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 = 0.032 (BCF = 1.076)
       log Kow used: 2.04 (estimated)

 Volatilization from Water:
    Henry LC:  5.88E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      119.1  hours   (4.963 days)
    Half-Life from Model Lake :       1399  hours   (58.28 days)

 Removal In Wastewater Treatment:
    Total removal:               2.61  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.18  percent
    Total to Air:                0.33  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.18            11.2         1000       
   Water     31.2            360          1000       
   Soil      67.5            720          1000       
   Sediment  0.115           3.24e+003    0          
     Persistence Time: 415 hr

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