Deprecated ChemSpider Record

You have reached the page for a ChemSpider record that has been deprecated.

This page is not active and is only accessible by directly using this URL. If you have been directed here from another website or database please notify the administrator of that resource. See below for more details.

ChemSpider 2D Image | 5-Ethoxy-1,2,4-thiadiazole-3-methanol | C5H8N2O2S


  • Molecular FormulaC5H8N2O2S
  • Average mass160.194 Da
  • Monoisotopic mass160.030655 Da
  • ChemSpider ID19309278

More details:

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

1,2,4-Thiadiazole-3-methanol, 5-ethoxy-

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

Density: 1.3±0.0 g/cm3
Boiling Point: 277.6±0.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.0 mmHg at 25°C
Enthalpy of Vaporization: 54.5±0.0 kJ/mol
Flash Point: 121.7±0.0 °C
Index of Refraction: 1.557
Molar Refractivity: 38.6±0.0 cm3
#H bond acceptors: 4
#H bond donors: 1
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 0.54
ACD/LogD (pH 5.5): 0.54
ACD/BCF (pH 5.5): 1.52
ACD/KOC (pH 5.5): 46.94
ACD/LogD (pH 7.4): 0.54
ACD/BCF (pH 7.4): 1.52
ACD/KOC (pH 7.4): 46.94
Polar Surface Area: 83 Å2
Polarizability: 15.3±0.0 10-24cm3
Surface Tension: 56.9±0.0 dyne/cm
Molar Volume: 119.7±0.0 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) =  0.78

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  284.45  (Adapted Stein & Brown method)
    Melting Pt (deg C):  93.88  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.85E-005  (Modified Grain method)
    Subcooled liquid VP: 0.000364 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):  1.467e+004
       log Kow used: 0.78 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  8.6676e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   5.62E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.128E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.78  (KowWin est)
  Log Kaw used:  -8.639  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.419
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9619
   Biowin2 (Non-Linear Model)     :   0.9837
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9470  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8232  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5861
   Biowin6 (MITI Non-Linear Model):   0.6347
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.0859
 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):  0.0485 Pa (0.000364 mm Hg)
  Log Koa (Koawin est  ): 9.419
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.18E-005 
       Octanol/air (Koa) model:  0.000644 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00223 
       Mackay model           :  0.00492 
       Octanol/air (Koa) model:  0.049 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  10.2824 E-12 cm3/molecule-sec
      Half-Life =     1.040 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    12.483 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.00357 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  10
      Log Koc:  1.000 

 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 = 0.500 (BCF = 3.162)
       log Kow used: 0.78 (estimated)

 Volatilization from Water:
    Henry LC:  5.62E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.319E+007  hours   (5.494E+005 days)
    Half-Life from Model Lake : 1.438E+008  hours   (5.993E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               1.87  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.78  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       0.00128         25           1000       
   Water     36.1            360          1000       
   Soil      63.8            720          1000       
   Sediment  0.0699          3.24e+003    0          
     Persistence Time: 598 hr


Click to predict properties on the Chemicalize site

Feedback Form