ChemSpider 2D Image | CZ9002750 | C7H8O3

CZ9002750

  • Molecular FormulaC7H8O3
  • Average mass140.137 Da
  • Monoisotopic mass140.047348 Da
  • ChemSpider ID13033

More details:






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

1,2-Benzenediol, 3-methoxy- [ACD/Index Name]
1,2-Dihydroxy-3-methoxybenzene
213-276-4 [EINECS]
3-Methoxy-1,2-benzenediol [ACD/IUPAC Name]
3-Méthoxy-1,2-benzènediol [French] [ACD/IUPAC Name]
3-Methoxy-1,2-benzoldiol [German] [ACD/IUPAC Name]
3-Methoxybenzene-1,2-diol
3-Methoxycatechol
3-Methoxypyrocatechol
934-00-9 [RN]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

IC13U5393C [DBID]
AI3-21349 [DBID]
AIDS122801 [DBID]
AIDS-122801 [DBID]
CCRIS 7577 [DBID]
DivK1c_007017 [DBID]
KBio1_001961 [DBID]
KBio2_002117 [DBID]
KBio2_004685 [DBID]
KBio2_007253 [DBID]
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  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
  • Gas Chromatography
    • Retention Index (Kovats):

      1311 (estimated with error: 89) NIST Spectra mainlib_118675, replib_63419, replib_231455
    • Retention Index (Normal Alkane):

      1272 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 280 C; End time: 9 min; Start time: 1 min; CAS no: 934009; Active phase: ZB-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Harrison, B.M.; Priest, F.G., Composition of peaks used in the preparation of malt for Scotch Whisky production - influence of geographical source and extraction depth, J. Agric. Food Chem., 57(6), 2009, 2385-2391.) NIST Spectra nist ri
      1263.5 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 50 C; End T: 280 C; End time: 10 min; Start time: 0.5 min; CAS no: 934009; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Guillen, M.D.; Manzanos, M.J., Study of the volatile composition of an aqueous oak smoke preparation, Food Chem., 79, 2002, 283-292.) NIST Spectra nist ri
      1257.9 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column length: 30 m; Column type: Capillary; Description: 45 0C (4 min) ^ 4 0C/min -> 240 0C ^ 39 0C/min -> 280 0C; CAS no: 934009; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Faix, O.; Meier, D.; Fortmann, I., Thermal degradation products of wood. Gas chromatographic separation and mass spectrometric characterization of monomeric lignin derived products, Holz Roh- Werkst., 48, 1990, 281-285.) NIST Spectra nist ri
      2519.8 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column length: 6 ft; Column type: Packed; Heat rate: 5 K/min; Start T: 70 C; End T: 180 C; CAS no: 934009; Active phase: Carbowax 20M-TPA; Carrier gas: He; Substrate: Gas Chrom P (60-80 mesh); Data type: Normal alkane RI; Authors: Fiddler, W.; Doerr, R.C.; Wasserman, A.E., Composition of an ether-soluble fraction of a liquid smoke solution, J. Agric. Food Chem., 18(2), 1970, 310-312.) NIST Spectra nist ri
    • Retention Index (Linear):

      1269.8 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 60C(2min) =>15C/min =>180C =>5C/min =>280C (10min); CAS no: 934009; Active phase: LM-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Re-Poppi, N.; Santiago-Silva, M., Polycyclic aromatic hydrocarbons and other selected organic compounds in ambient air of Campo Grande City, Brazil, Atmos. Environ., 39, 2005, 2839-2850.) NIST Spectra nist ri
      1268.2 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 60C(2min)=>15C/min=>180C=>5C/min=>280C(5min); CAS no: 934009; Active phase: LM-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Re-Poppi, N.; Santiago-Silva, M.R., Identification of polycyclic aromatic hydrocarbons and methoxylated phenols in wood smoke emitted during production of charcoal, Chromatographia, 55(7/8), 2002, 475-481.) NIST Spectra nist ri

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

Density: 1.3±0.1 g/cm3
Boiling Point: 268.1±0.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.5 mmHg at 25°C
Enthalpy of Vaporization: 52.7±3.0 kJ/mol
Flash Point: 119.5±21.8 °C
Index of Refraction: 1.580
Molar Refractivity: 36.7±0.3 cm3
#H bond acceptors: 3
#H bond donors: 2
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 0.70
ACD/LogD (pH 5.5): 0.74
ACD/BCF (pH 5.5): 2.16
ACD/KOC (pH 5.5): 60.43
ACD/LogD (pH 7.4): 0.74
ACD/BCF (pH 7.4): 2.13
ACD/KOC (pH 7.4): 59.63
Polar Surface Area: 50 Å2
Polarizability: 14.5±0.5 10-24cm3
Surface Tension: 50.5±3.0 dyne/cm
Molar Volume: 110.3±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) =  0.86

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  265.55  (Adapted Stein & Brown method)
    Melting Pt (deg C):  72.94  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00139  (Modified Grain method)
    MP  (exp database):  42.8 deg C
    Subcooled liquid VP: 0.00202 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):  1.549e+004
       log Kow used: 0.86 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.8567e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.45E-012  atm-m3/mole
   Group Method:   6.58E-011  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.655E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.86  (KowWin est)
  Log Kaw used:  -9.851  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  10.711
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0444
   Biowin2 (Non-Linear Model)     :   0.9938
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9441  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8020  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6440
   Biowin6 (MITI Non-Linear Model):   0.7612
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8097
 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):  0.269 Pa (0.00202 mm Hg)
  Log Koa (Koawin est  ): 10.711
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.11E-005 
       Octanol/air (Koa) model:  0.0126 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000402 
       Mackay model           :  0.00089 
       Octanol/air (Koa) model:  0.502 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 201.1096 E-12 cm3/molecule-sec
      Half-Life =     0.053 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.638 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.000646 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  321.9
      Log Koc:  2.508 

 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: 0.86 (estimated)

 Volatilization from Water:
    Henry LC:  6.58E-011 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 1.053E+007  hours   (4.389E+005 days)
    Half-Life from Model Lake : 1.149E+008  hours   (4.788E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               1.88  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.78  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       0.00148         1.28         1000       
   Water     35.7            360          1000       
   Soil      64.2            720          1000       
   Sediment  0.0698          3.24e+003    0          
     Persistence Time: 599 hr




                    

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