ChemSpider 2D Image | cephalosporanic acid | C10H11NO5S

cephalosporanic acid

  • Molecular FormulaC10H11NO5S
  • Average mass257.263 Da
  • Monoisotopic mass257.035797 Da
  • ChemSpider ID18518012
  • defined stereocentres - 1 of 1 defined stereocentres


More details:






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

(6R)-3-(Acetoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-2-carbonsäure [German] [ACD/IUPAC Name]
(6R)-3-(Acetoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid [ACD/IUPAC Name]
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(acetyloxy)methyl]-8-oxo-, (6R)- [ACD/Index Name]
Acide (6R)-3-(acétoxyméthyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ène-2-carboxylique [French] [ACD/IUPAC Name]
cephalosporanic acid
(6R)-3-[(acetyloxy)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
(R)-3-(Acetoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
4704-60-3 [RN]
cephalosporanate

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

Density: 1.6±0.1 g/cm3
Boiling Point: 528.3±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±3.0 mmHg at 25°C
Enthalpy of Vaporization: 87.9±6.0 kJ/mol
Flash Point: 273.3±30.1 °C
Index of Refraction: 1.633
Molar Refractivity: 59.2±0.4 cm3
#H bond acceptors: 6
#H bond donors: 1
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: -0.67
ACD/LogD (pH 5.5): -2.93
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -3.86
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 109 Å2
Polarizability: 23.5±0.5 10-24cm3
Surface Tension: 71.1±5.0 dyne/cm
Molar Volume: 165.7±5.0 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) =  0.23

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  427.89  (Adapted Stein & Brown method)
    Melting Pt (deg C):  178.91  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  4.34E-008  (Modified Grain method)
    Subcooled liquid VP: 1.73E-006 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):  1.36e+004
       log Kow used: 0.23 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3.5054e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.77E-014  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.080E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.23  (KowWin est)
  Log Kaw used:  -11.812  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.042
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0821
   Biowin2 (Non-Linear Model)     :   0.9989
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0813  (weeks       )
   Biowin4 (Primary Survey Model) :   4.2965  (hours-days  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7000
   Biowin6 (MITI Non-Linear Model):   0.5885
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3727
 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):  0.000231 Pa (1.73E-006 mm Hg)
  Log Koa (Koawin est  ): 12.042
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.013 
       Octanol/air (Koa) model:  0.27 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.32 
       Mackay model           :  0.51 
       Octanol/air (Koa) model:  0.956 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 108.1320 E-12 cm3/molecule-sec
      Half-Life =     0.099 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.187 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     7.393750 E-17 cm3/molecule-sec
      Half-Life =     0.155 Days (at 7E11 mol/cm3)
      Half-Life =      3.720 Hrs
   Fraction sorbed to airborne particulates (phi): 0.415 (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]:
  Total Kb for pH > 8 at 25 deg C :  3.467E-001  L/mol-sec
  Kb Half-Life at pH 8:      23.141  days   
  Kb Half-Life at pH 7:     231.410  days   

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 0.23 (estimated)

 Volatilization from Water:
    Henry LC:  3.77E-014 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.491E+010  hours   (1.038E+009 days)
    Half-Life from Model Lake : 2.717E+011  hours   (1.132E+010 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       1.43e-006       1.45         1000       
   Water     38.1            360          1000       
   Soil      61.8            720          1000       
   Sediment  0.0708          3.24e+003    0          
     Persistence Time: 585 hr




                    

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