ChemSpider 2D Image | Allomaltol | C6H6O3

Allomaltol

  • Molecular FormulaC6H6O3
  • Average mass126.110 Da
  • Monoisotopic mass126.031693 Da
  • ChemSpider ID62726

More details:






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

4H-Pyran-4-one, 5-hydroxy-2-methyl- [ACD/Index Name]
5-Hydroxy-2-methyl-4H-pyran-4-on [German] [ACD/IUPAC Name]
5-Hydroxy-2-methyl-4H-pyran-4-one [ACD/IUPAC Name]
5-Hydroxy-2-méthyl-4H-pyran-4-one [French] [ACD/IUPAC Name]
644-46-2 [RN]
Allomaltol
allomaltol; 5-hydroxy-2-methyl-4H-pyran-4-one
MFCD04125897 [MDL number]
2-Methyl-5-hydroxy-(4H)-pyran-4-one
2-Methyl-5-hydroxy-1,4-pyrone
More...

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

A3L2726A8X [DBID]
NSC166902 [DBID]
UNII:A3L2726A8X [DBID]
UNII-A3L2726A8X [DBID]
ZINC01395450 [DBID]
  • Gas Chromatography
    • Retention Index (Kovats):

      1063 (estimated with error: 89) NIST Spectra mainlib_2555
    • Retention Index (Linear):

      2030 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 230 C; CAS no: 644462; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shimoda, M.; Wu, Y.; Osajima, Y., Aroma compounds from aqueous solution of Haze (Rhus succedanea) honey determined by adsorptive column chromatography, J. Agric. Food Chem., 44, 1996, 3913-3918.) NIST Spectra nist ri

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

Density: 1.3±0.1 g/cm3
Boiling Point: 285.5±40.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.3 mmHg at 25°C
Enthalpy of Vaporization: 60.9±6.0 kJ/mol
Flash Point: 127.7±20.8 °C
Index of Refraction: 1.561
Molar Refractivity: 30.3±0.3 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.21
ACD/LogD (pH 5.5): 0.14
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 28.22
ACD/LogD (pH 7.4): 0.09
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 25.22
Polar Surface Area: 47 Å2
Polarizability: 12.0±0.5 10-24cm3
Surface Tension: 51.8±3.0 dyne/cm
Molar Volume: 93.5±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) =  -0.19
    Log Kow (Exper. database match) =  -0.59
       Exper. Ref:  Ellis,BL et al. (1996)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  267.24  (Adapted Stein & Brown method)
    Melting Pt (deg C):  60.20  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000507  (Modified Grain method)
    Subcooled liquid VP: 0.00108 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):  3.038e+005
       log Kow used: -0.59 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4574 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Vinyl/Allyl Ketones
       Vinyl/Allyl Ethers
       Vinyl/Allyl Alcohols

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   6.54E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.769E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.59  (exp database)
  Log Kaw used:  -3.573  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  2.983
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5057
   Biowin2 (Non-Linear Model)     :   0.1756
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0493  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7633  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6301
   Biowin6 (MITI Non-Linear Model):   0.6664
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0931
 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):  0.144 Pa (0.00108 mm Hg)
  Log Koa (Koawin est  ): 2.983
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  2.08E-005 
       Octanol/air (Koa) model:  2.36E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000752 
       Mackay model           :  0.00166 
       Octanol/air (Koa) model:  1.89E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  61.1060 E-12 cm3/molecule-sec
      Half-Life =     0.175 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.100 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.312500 E-17 cm3/molecule-sec
      Half-Life =     0.873 Days (at 7E11 mol/cm3)
      Half-Life =     20.955 Hrs
   Fraction sorbed to airborne particulates (phi): 0.00121 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1
      Log Koc:  0.000 

 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: -0.59 (expkow database)

 Volatilization from Water:
    Henry LC:  6.54E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      101.7  hours   (4.237 days)
    Half-Life from Model Lake :       1203  hours   (50.14 days)

 Removal In Wastewater Treatment:
    Total removal:               2.21  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.37  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.57            3.5          1000       
   Water     48.6            360          1000       
   Soil      50.7            720          1000       
   Sediment  0.0891          3.24e+003    0          
     Persistence Time: 323 hr




                    

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