ChemSpider 2D Image | 2-ethyl-4,5-dihydrothiazole | C5H9NS

2-ethyl-4,5-dihydrothiazole

  • Molecular FormulaC5H9NS
  • Average mass115.197 Da
  • Monoisotopic mass115.045570 Da
  • ChemSpider ID78393

More details:






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

16982-46-0 [RN]
241-062-0 [EINECS]
2-Ethyl-4,5-dihydro-1,3-thiazol [German] [ACD/IUPAC Name]
2-Ethyl-4,5-dihydro-1,3-thiazole [ACD/IUPAC Name]
2-Éthyl-4,5-dihydro-1,3-thiazole [French] [ACD/IUPAC Name]
2-ethyl-4,5-dihydrothiazole
Thiazole, 2-ethyl-4,5-dihydro- [ACD/Index Name]
2-Ethyl-2-thiazoline
2-Ethylthiazoline
2-Thiazoline, 2-ethyl- (6CI,7CI,8CI)
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

BRN 0105466 [DBID]
  • Gas Chromatography
    • Retention Index (Kovats):

      950 (estimated with error: 89) NIST Spectra mainlib_292875
    • Retention Index (Normal Alkane):

      924 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 70 C; End T: 180 C; CAS no: 16982460; Active phase: SPB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Huang, T.-C.; Huang, L.-Z.; Ho, C.-T., Mechanistic studies on thiazolidine formation in aldehyde/cysteamine model systems, J. Agric. Food Chem., 46(1), 1998, 224-227.) NIST Spectra nist ri
      958 (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: 260 C; End time: 60 min; Start time: 5 min; CAS no: 16982460; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Yu, T.-H.; Wu, C.-M.; Ho, C.-T., Volatile compounds generated from the thermal interaction of glucose and alliin or deoxyalliin in propylene glycol, Food Chem., 51, 1994, 281-286.) NIST Spectra nist ri
      1368 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 200 C; Start time: 2 min; CAS no: 16982460; Active phase: DB-Wax; Carrier gas: He; Data type: Normal alkane RI; Authors: Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T., Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system, J. Agric. Food Chem., 43, 1995, 2212-2218.) NIST Spectra nist ri
    • Retention Index (Linear):

      1364 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 220 C; End time: 30 min; Start time: 4 min; CAS no: 16982460; Active phase: DB-Wax; Carrier gas: He; Data type: Linear RI; Authors: Chung, T.Y.; Eiserich, J.P.; Shibamoto, T., Volatile compounds produced from peanut oil heated with different amounts of cysteine, J. Agric. Food Chem., 42(8), 1994, 1743-1746.) 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: 157.8±9.0 °C at 760 mmHg
Vapour Pressure: 3.5±0.3 mmHg at 25°C
Enthalpy of Vaporization: 37.8±3.0 kJ/mol
Flash Point: 49.2±18.7 °C
Index of Refraction: 1.573
Molar Refractivity: 33.7±0.5 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 0.02
ACD/LogD (pH 5.5): 1.31
ACD/BCF (pH 5.5): 5.32
ACD/KOC (pH 5.5): 103.97
ACD/LogD (pH 7.4): 1.46
ACD/BCF (pH 7.4): 7.58
ACD/KOC (pH 7.4): 148.10
Polar Surface Area: 38 Å2
Polarizability: 13.4±0.5 10-24cm3
Surface Tension: 38.1±7.0 dyne/cm
Molar Volume: 102.4±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) =  3.12

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  166.45  (Adapted Stein & Brown method)
    Melting Pt (deg C):  16.94  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.85  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  225.7
       log Kow used: 3.12 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  574.84 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.02E-005  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.242E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.12  (KowWin est)
  Log Kaw used:  -2.784  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.904
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6927
   Biowin2 (Non-Linear Model)     :   0.7979
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9446  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6815  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4587
   Biowin6 (MITI Non-Linear Model):   0.5305
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5425
 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):  224 Pa (1.68 mm Hg)
  Log Koa (Koawin est  ): 5.904
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.34E-008 
       Octanol/air (Koa) model:  1.97E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.84E-007 
       Mackay model           :  1.07E-006 
       Octanol/air (Koa) model:  1.57E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   9.4863 E-12 cm3/molecule-sec
      Half-Life =     1.128 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    13.530 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 7.78E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  280.7
      Log Koc:  2.448 

 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 = 1.703 (BCF = 50.48)
       log Kow used: 3.12 (estimated)

 Volatilization from Water:
    Henry LC:  4.02E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      16.73  hours
    Half-Life from Model Lake :      272.5  hours   (11.35 days)

 Removal In Wastewater Treatment:
    Total removal:               8.79  percent
    Total biodegradation:        0.13  percent
    Total sludge adsorption:     6.64  percent
    Total to Air:                2.02  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.3             27.1         1000       
   Water     23.2            360          1000       
   Soil      74              720          1000       
   Sediment  0.486           3.24e+003    0          
     Persistence Time: 452 hr




                    

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