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ChemSpider 2D Image | 1,4-Thiophthene | C6H4S2

1,4-Thiophthene

  • Molecular FormulaC6H4S2
  • Average mass140.226 Da
  • Monoisotopic mass139.975433 Da
  • ChemSpider ID119840

More details:

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

1,4-Dithiapentalene
1,4-Thiophthene
251-41-2 [RN]
MFCD00179479 [MDL number]
thieno(3,2-b)thiophene
Thieno[3,2-b]thiophen [German] [ACD/IUPAC Name]
Thieno[3,2-b]thiophene [ACD/Index Name] [ACD/IUPAC Name]
Thiéno[3,2-b]thiophène [French] [ACD/IUPAC Name]
thienothiophene
[251-41-2] [RN]
More...

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

AI-942/25034154 [DBID]
CCRIS 4693 [DBID]
ZINC00165492 [DBID]
  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous

    • Safety:

      CAUTION: May irritate eyes, skin, and respiratory tract Alfa Aesar H30637
  • Gas Chromatography

    • Retention Index (Kovats):

      1147 (estimated with error: 46) NIST Spectra mainlib_3764

    • Retention Index (Lee):

      201.53 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: A: 105 0C (2 min) ^ 2.5 0C -> 230 0C ^ 50 0C/min -> 305 0C (15 min) B: 95 0C (2 min) ^ 3.8 0C/min -> 310 0C (5 min); CAS no: 251412; Active phase: SPB-5; Carrier gas: He; Phase thickness: 0.10 um; Data type: Lee RI; Authors: Thuss, U.; Popp, P.; Ehrlich, C.; Kalkoff, W.-D., Identification and quantification of thaarenes in the flue gas of lignite-fired domestic heating, J. Hi. Res. Chromatogr., 23(7/8), 2000, 457-473.) NIST Spectra nist ri

    • Retention Index (Normal Alkane):

      1843 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 220 C; CAS no: 251412; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Guntert, M.; Bruning, J.; Emberger, R.; Kopsel, Ml; Kuhn, W.; Thielmann, T.; Werkhoff, P., Identification and formation of some selected sulfur-containing flavor compounds in various meat model systems, J. Agric. Food Chem., 38, 1990, 2027-2041.) NIST Spectra nist ri

    • Retention Index (Linear):

      1185 (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: 251412; 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.) NIST Spectra nist ri
      1213 (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: 251412; 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
      1214 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 0C =>60C/min => 60C (5min) => 4C/min => 250C; CAS no: 251412; Active phase: DB-5; Carrier gas: He; Data type: Linear RI; Authors: Mottram, D.S.; Whitfield, F.B., Volatile compounds from the reaction of cysteine, ribose, and phospholipid in low-moisture systems, J. Agric. Food Chem., 43, 1995, 984-988.) NIST Spectra nist ri
      1872 (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: 251412; 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
      1876 (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: 251412; 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, version: 14.00

Density: 1.4±0.1 g/cm3
Boiling Point: 223.4±13.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.1±3.0 kJ/mol
Flash Point: 63.1±6.0 °C
Index of Refraction: 1.729
Molar Refractivity: 40.9±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 1
ACD/LogP: 5.31
ACD/LogD (pH 5.5): 3.67
ACD/BCF (pH 5.5): 365.69
ACD/KOC (pH 5.5): 2378.37
ACD/LogD (pH 7.4): 3.67
ACD/BCF (pH 7.4): 365.69
ACD/KOC (pH 7.4): 2378.37
Polar Surface Area: 56 Å2
Polarizability: 16.2±0.5 10-24cm3
Surface Tension: 53.6±3.0 dyne/cm
Molar Volume: 102.5±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) =  2.81

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  249.36  (Adapted Stein & Brown method)
    Melting Pt (deg C):  55.88  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0142  (Modified Grain method)
    Subcooled liquid VP: 0.0275 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):  333.3
       log Kow used: 2.81 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  265.51 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.55E-004  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.860E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.81  (KowWin est)
  Log Kaw used:  -2.198  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.008
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6808
   Biowin2 (Non-Linear Model)     :   0.7345
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8893  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6454  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3279
   Biowin6 (MITI Non-Linear Model):   0.2608
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4544
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   1.0149
     BioHC Half-Life (days)     :  10.3483

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  3.67 Pa (0.0275 mm Hg)
  Log Koa (Koawin est  ): 5.008
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  8.18E-007 
       Octanol/air (Koa) model:  2.5E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.96E-005 
       Mackay model           :  6.55E-005 
       Octanol/air (Koa) model:  2E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  21.6000 E-12 cm3/molecule-sec
      Half-Life =     0.495 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     5.942 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.75E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  540.1
      Log Koc:  2.732 

 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 = 1.463 (BCF = 29.06)
       log Kow used: 2.81 (estimated)

 Volatilization from Water:
    Henry LC:  0.000155 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      5.681  hours
    Half-Life from Model Lake :      161.3  hours   (6.719 days)

 Removal In Wastewater Treatment:
    Total removal:              11.11  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     4.07  percent
    Total to Air:                6.93  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.64            11.9         1000       
   Water     22.3            360          1000       
   Soil      75.8            720          1000       
   Sediment  0.263           3.24e+003    0          
     Persistence Time: 399 hr

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