ChemSpider 2D Image | 5-Methoxy-3-thiophenecarboxylic acid | C6H6O3S

5-Methoxy-3-thiophenecarboxylic acid

  • Molecular FormulaC6H6O3S
  • Average mass158.175 Da
  • Monoisotopic mass158.003769 Da
  • ChemSpider ID4461234

More details:

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

3-Thiophenecarboxylic acid, 5-methoxy- [ACD/Index Name]
5-Methoxy-3-thiophencarbonsäure [German] [ACD/IUPAC Name]
5-Methoxy-3-thiophenecarboxylic acid [ACD/IUPAC Name]
Acide 5-méthoxy-3-thiophènecarboxylique [French] [ACD/IUPAC Name]
5-methoxythiophene-3-carboxylic acid
78395-09-2 [RN]
MFCD06617854

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

A3933/0167417 [DBID]

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

Density: 1.4±0.1 g/cm3
Boiling Point: 311.8±22.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.7 mmHg at 25°C
Enthalpy of Vaporization: 58.4±3.0 kJ/mol
Flash Point: 142.4±22.3 °C
Index of Refraction: 1.577
Molar Refractivity: 38.2±0.3 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.95
ACD/LogD (pH 5.5): 0.80
ACD/BCF (pH 5.5): 1.29
ACD/KOC (pH 5.5): 20.20
ACD/LogD (pH 7.4): -0.85
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 75 Å2
Polarizability: 15.2±0.5 10-24cm3
Surface Tension: 51.5±3.0 dyne/cm
Molar Volume: 115.4±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) =  1.78

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  290.96  (Adapted Stein & Brown method)
    Melting Pt (deg C):  88.72  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000768  (Modified Grain method)
    Subcooled liquid VP: 0.00315 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):  2125
       log Kow used: 1.78 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2269.5 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.49E-009  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.522E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.78  (KowWin est)
  Log Kaw used:  -6.846  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.626
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9810
   Biowin2 (Non-Linear Model)     :   0.9957
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8794  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7044  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.8306
   Biowin6 (MITI Non-Linear Model):   0.8794
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.0092
 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):  0.42 Pa (0.00315 mm Hg)
  Log Koa (Koawin est  ): 8.626
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.14E-006 
       Octanol/air (Koa) model:  0.000104 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000258 
       Mackay model           :  0.000571 
       Octanol/air (Koa) model:  0.00823 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  30.0226 E-12 cm3/molecule-sec
      Half-Life =     0.356 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     4.275 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.000415 (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: 1.78 (estimated)

 Volatilization from Water:
    Henry LC:  3.49E-009 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:  2.11E+005  hours   (8791 days)
    Half-Life from Model Lake : 2.302E+006  hours   (9.591E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               2.09  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.99  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       0.0645          8.55         1000       
   Water     26.1            360          1000       
   Soil      73.8            720          1000       
   Sediment  0.0746          3.24e+003    0          
     Persistence Time: 653 hr

Click to predict properties on the Chemicalize site


Advertisement