ChemSpider 2D Image | Taurine | C2H7NO3S


  • Molecular FormulaC2H7NO3S
  • Average mass125.147 Da
  • Monoisotopic mass125.014664 Da
  • ChemSpider ID1091

More details:

Featured data source

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

107-35-7 [RN]
2-Aminoethanesulfonic acid [ACD/IUPAC Name]
2-aminoethanesulphonic acid
2-Aminoethansulfonsäure [German] [ACD/IUPAC Name]
Acide 2-aminoéthanesulfonique [French] [ACD/IUPAC Name]
b-Aminoethylsulfonic acid
Ethanesulfonic acid, 2-amino- [ACD/Index Name]
Taurin [German] [Wiki]
Taurina [Spanish] [INN]

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

86329_FLUKA [DBID]
86330_FLUKA [DBID]
AI3-18307 [DBID]
AIDS018784 [DBID]
AIDS-018784 [DBID]
bmse000120 [DBID]
C00245 [DBID]
CHEBI:15891 [DBID]
D00047 [DBID]
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      300 °C Alfa Aesar
      300 °C Oxford University Chemical Safety Data (No longer updated) More details
      300 °C (Decomposes) LKT Labs [T0081]
      300 °C Jean-Claude Bradley Open Melting Point Dataset 15226
      328 °C Jean-Claude Bradley Open Melting Point Dataset 17069, 22286
      300 °C Alfa Aesar A12403
      300 °C LabNetwork LN00194341
    • Experimental Solubility:

      10 mM in DMSO MedChem Express HY-B0351
      Soluble in 15.5 parts of water (12oC), 100 parts of 95% alc (17oC). LKT Labs [T0081]
      Soluble to 100 mM in water Tocris Bioscience 0209
      Water: 20 mg/mL; MedChem Express HY-B0351
  • Miscellaneous
    • Appearance:

      white crystalline powder Oxford University Chemical Safety Data (No longer updated) More details
      White powder Novochemy [NC-30481]
      White to cream coloured crystaline solid; Food and Agriculture Organization of the United Nations 2-Aminoethanesulfonic acid
    • Stability:

      Stable. Incompatible with strong oxidizing agents. Oxford University Chemical Safety Data (No longer updated) More details
    • Toxicity:

      ORL-RAT LD50 > 5000 mg kg-1, IVN-RAT LD50 > 7000 mg kg-1, ORL-MUS LD50 6630 mg kg-1 Oxford University Chemical Safety Data (No longer updated) More details
    • Safety:

      26-37 Alfa Aesar A12403
      26-37-60 Alfa Aesar A12403
      36/37/38 Alfa Aesar A12403
      36/37/38 LKT Labs [T0081]
      CAUTION: May irritate eyes, skin, and respiratory tract Alfa Aesar A12403
      H315 H319 H335 LKT Labs [T0081]
      H315-H319-H335 Alfa Aesar A12403
      None LKT Labs [T0081]
      P261-P280-P305+P351+P338-P304+P340-P405-P501a Alfa Aesar A12403
      Safety glasses. Oxford University Chemical Safety Data (No longer updated) More details
      Warning Alfa Aesar A12403
      WARNING: Irritates lungs, eyes, skin Alfa Aesar A12403
      Xi Abblis Chemicals AB1002120
      Xi LKT Labs [T0081]
    • Target Organs:

      Lipid TargetMol T0022
    • Bio Activity:

      LDL,VLDL TargetMol T0022
      Metabolism TargetMol T0022
      Non-selective, endogenous glycine receptor partial agonist Tocris Bioscience 0209
      One of the most abundant free amino acids in the brain. A partial agonist at the inhibitory glycine receptor. Tocris Bioscience 0209
      Others MedChem Express HY-B0351
      Taurine is an organic acid widely distributed in animal tissues. MedChem Express
      Taurine is an organic acid widely distributed in animal tissues.; Target: Others; Taurine is a major constituent of bile and can be found in the large intestine and accounts for approximately 0.1% of total human body weight [1]. MedChem Express HY-B0351
  • Gas Chromatography

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

Density: 1.5±0.1 g/cm3
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction: 1.515
Molar Refractivity: 25.3±0.4 cm3
#H bond acceptors: 4
#H bond donors: 3
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: -2.46
ACD/LogD (pH 5.5): -5.19
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -5.20
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 89 Å2
Polarizability: 10.0±0.5 10-24cm3
Surface Tension: 68.2±3.0 dyne/cm
Molar Volume: 83.8±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) =  -3.36

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  280.52  (Adapted Stein & Brown method)
    Melting Pt (deg C):  70.91  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.75E-007  (Modified Grain method)
    MP  (exp database):  328 deg C
    Subcooled liquid VP: 0.000467 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):  1e+006
       log Kow used: -3.36 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  8.07e+004 mg/L (20 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L
    Wat Sol (Exper. database match) =  80700.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.72E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.882E-014 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -3.36  (KowWin est)
  Log Kaw used:  -10.153  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.793
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9502
   Biowin2 (Non-Linear Model)     :   0.9999
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1397  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8876  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4720
   Biowin6 (MITI Non-Linear Model):   0.3746
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.0654
 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):  0.0623 Pa (0.000467 mm Hg)
  Log Koa (Koawin est  ): 6.793
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  4.82E-005 
       Octanol/air (Koa) model:  1.52E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00174 
       Mackay model           :  0.00384 
       Octanol/air (Koa) model:  0.000122 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  32.9728 E-12 cm3/molecule-sec
      Half-Life =     0.324 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.893 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.00279 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.339
      Log Koc:  0.127 

 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: -3.36 (estimated)

 Volatilization from Water:
    Henry LC:  1.72E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.808E+008  hours   (1.587E+007 days)
    Half-Life from Model Lake : 4.154E+009  hours   (1.731E+008 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  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       0.000114        7.79         1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr


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