ChemSpider 2D Image | Lactulose | C12H22O11

Lactulose

  • Molecular FormulaC12H22O11
  • Average mass342.297 Da
  • Monoisotopic mass342.116211 Da
  • ChemSpider ID10856
  • defined stereocentres - 9 of 9 defined stereocentres


More details:






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

(2S,3R,4S,5R,6R)-2-{[(2R,3S,4S,5R)-4,5-Dihydroxy-2,5-bis(hydroxymethyl)tetrahydro-3-furanyl]oxy}-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
(2S,3R,4S,5R,6R)-2-{[(2R,3S,4S,5R)-4,5-Dihydroxy-2,5-bis(hydroxyméthyl)tétrahydro-3-furanyl]oxy}-6-(hydroxyméthyl)tétrahydro-2H-pyran-3,4,5-triol
(2S,3R,4S,5R,6R)-2-{[(2R,3S,4S,5R)-4,5-Dihydroxy-2,5-bis(hydroxymethyl)tetrahydrofuran-3-yl]oxy}-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
(2S,3R,4S,5R,6R)-2-{[(2R,3S,4S,5R)-4,5-dihydroxy-2,5-bis(hydroxyméthyl)tétrahydrofuran-3-yl]oxy}-6-(hydroxyméthyl)tétrahydro-2H-pyran-3,4,5-triol
?-lactulose
4618-18-2 [RN]
4-b-d-galactosido-d-fructose
4-D-Galactopyranosyl-4-D-fructofuranose
4-O-b-D-Galactosyl-D-fructose
4-O-β-D-Galactopyranosyl-β-D-fructofuranose [ACD/IUPAC Name]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

BRN 0093773 [DBID]
BRN 6278818 [DBID]
C07064 [DBID]
D00352 [DBID]
DivK1c_000064 [DBID]
KBio1_000064 [DBID]
KBio2_001337 [DBID]
KBio2_003905 [DBID]
KBio2_006473 [DBID]
KBio3_001436 [DBID]
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Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.8±0.1 g/cm3
Boiling Point: 680.5±55.0 °C at 760 mmHg
Vapour Pressure: 0.0±4.8 mmHg at 25°C
Enthalpy of Vaporization: 114.2±6.0 kJ/mol
Flash Point: 365.4±31.5 °C
Index of Refraction: 1.656
Molar Refractivity: 70.9±0.4 cm3
#H bond acceptors: 11
#H bond donors: 8
#Freely Rotating Bonds: 5
#Rule of 5 Violations: 2
ACD/LogP: -3.21
ACD/LogD (pH 5.5): -3.72
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -3.72
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 190 Å2
Polarizability: 28.1±0.5 10-24cm3
Surface Tension: 113.0±5.0 dyne/cm
Molar Volume: 192.8±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) =  -3.32

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  586.18  (Adapted Stein & Brown method)
    Melting Pt (deg C):  252.85  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  8.45E-017  (Modified Grain method)
    Subcooled liquid VP: 2.56E-014 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: -3.32 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.47E-022  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.806E-023 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -3.32  (KowWin est)
  Log Kaw used:  -19.738  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  16.418
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.4697
   Biowin2 (Non-Linear Model)     :   0.0024
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.3244  (days-weeks  )
   Biowin4 (Primary Survey Model) :   4.0774  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   1.1416
   Biowin6 (MITI Non-Linear Model):   0.5008
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.0530
 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):  3.41E-012 Pa (2.56E-014 mm Hg)
  Log Koa (Koawin est  ): 16.418
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  8.79E+005 
       Octanol/air (Koa) model:  6.43E+003 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 119.6827 E-12 cm3/molecule-sec
      Half-Life =     0.089 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.072 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1 (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: -3.32 (estimated)

 Volatilization from Water:
    Henry LC:  4.47E-022 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.423E+018  hours   (1.01E+017 days)
    Half-Life from Model Lake : 2.644E+019  hours   (1.102E+018 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       9.36e-007       2.14         1000       
   Water     34.5            208          1000       
   Soil      65.5            416          1000       
   Sediment  0.0596          1.87e+003    0          
     Persistence Time: 387 hr




                    

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