4-Anisic acid C8H8O3 structure – Flashcards

Flashcard maker : Sean Hill
C8H8O3 structure
Molecular Formula C8H8O3
Average mass 152.147 Da
Density 1.2±0.1 g/cm3
Boiling Point 278.3±13.0 °C at 760 mmHg
Flash Point 115.5±13.3 °C
Molar Refractivity 39.9±0.3 cm3
Polarizability 15.8±0.5 10-24cm3
Surface Tension 44.9±3.0 dyne/cm
Molar Volume 126.0±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Predicted – Mcule
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      182-185 °C SynQuest
      184 °C TCI A0482
      182-185 °C Alfa Aesar
      182-185 °C Oxford University Chemical Safety Data (No longer updated) More details
      182-185 °C Merck Millipore 1630, 805971
      183.5 °C Jean-Claude Bradley Open Melting Point Dataset 15478
      185 °C Jean-Claude Bradley Open Melting Point Dataset 16912, 25948, 27686
      184 °C Jean-Claude Bradley Open Melting Point Dataset 13990, 5334
      182-185 °C Alfa Aesar A15697
      182-185 °C SynQuest 62433, 2621-1-Y2
      182-185 °C Oakwood 065743
      183 °C Biosynth Q-200490
      182-185 °C LabNetwork LN00182796
      185 °C FooDB FDB008969, FDB010587
      184 °C FooDB FDB008969, FDB010587
    • Experimental Boiling Point:

      275-277 °C Alfa Aesar
      275-280 °C Food and Agriculture Organization of the United Nations 4-Methoxybenzoic acid
      276 °C Oxford University Chemical Safety Data (No longer updated) More details
      275-277 °C Alfa Aesar A15697
      275-280 °C SynQuest 62433, 2621-1-Y2
      275 °C LabNetwork LN00182796
      275-280 °C FooDB FDB008969, FDB010587
    • Experimental LogP:

      1.96 Vitas-M STK498216
      1.96 Egon Willighagen http://dx.doi.org/10.1021/ci050282s
    • Experimental Flash Point:

      185 °C Alfa Aesar
      185 °C Alfa Aesar
      185 °C Biosynth Q-200490
      185 °F (85 °C)
      Alfa Aesar A15697
      185 °C SynQuest 62433, 2621-1-Y2
      185 °C Oakwood 065743
      185 °C LabNetwork LN00182796
    • Experimental Gravity:

      1.385 g/mL Alfa Aesar A15697
      1.385 g/mL SynQuest 2621-1-Y2
      185 g/mL Biosynth Q-200490
  • Predicted Physico-chemical Properties
    • Predicted Melting Point:

      184 °C TCI
      184 °C TCI A0482
  • Miscellaneous
    • Appearance:

      Not Available Novochemy
      [NC-29312]
      white crystals with practically no odour Food and Agriculture Organization of the United Nations 4-Methoxybenzoic acid
      white powder Oxford University Chemical Safety Data (No longer updated) More details
    • Stability:

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

      20/21/22 Novochemy
      [NC-29312]
      20/21/36/37/39 Novochemy
      [NC-29312]
      CAUTION: May irritate eyes, skin, and respiratory tract Alfa Aesar A15697
      GHS07 Biosynth Q-200490
      GHS07; GHS09 Novochemy
      [NC-29312]
      H315; H319; H335 Biosynth Q-200490
      H332; H403 Novochemy
      [NC-29312]
      Harmful/Irritant SynQuest 2621-1-Y2, 62433
      IRRITANT Matrix Scientific 082138
      P261; P280; P302+P352; P304+P340; P305+P351+P338; P312 Biosynth Q-200490
      P309+P311; P211; P242 Novochemy
      [NC-29312]
      R52/53 Novochemy
      [NC-29312]
      Safety glasses, adequate ventilation. Oxford University Chemical Safety Data (No longer updated) More details
      Warning Biosynth Q-200490
      Warning Novochemy
      [NC-29312]
      WARNING: Irritates lungs, eyes, skin Alfa Aesar A15697
      Xi Abblis Chemicals AB1002335
  • Gas Chromatography
    • Retention Index (Kovats):

      1339 (estimated with error: 89) NIST Spectra mainlib_228565, replib_21559, replib_374999, replib_63234
    • Retention Index (Normal Alkane):

      1396 (Program type: Complex; Column… (show more) class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 30C=>55C/min => 85C => 1C/min =>145C => 3C/min =>250C; CAS no: 100094; Active phase: CP Sil 5 CB; Carrier gas: He; Data type: Normal alkane RI; Authors: Guyot, C.; Scheirman, V.; Collin, S., Floral origin markers of heather honeys: Calluna vulgaris and Erica arborea, Food Chem., 64, 1999, 3-11.) NIST Spectra nist ri
      1453 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C(3min)=> 2C/min=>180C=>10C/min=>250C(5min); CAS no: 100094; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Alissandrakis, E.; Kibaris, A.C.; Tarantilis, P.A.; Harizanis, P.C.; Polissiou, M., Flavour compounds of Greek cotton honey, J. Sci. Food Agric., 85, 2005, 1444-1452.) NIST Spectra nist ri
    • Retention Index (Linear):

      1441 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Start T: 60 C; End T: 270 C; CAS no: 100094; Active phase: VF-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Todua, N.G., Retention Data. NIST Mass Spectrometry Data Center., 2011.) NIST Spectra nist ri
      1489 (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: 35 C; End T: 270 C; End time: 20 min; CAS no: 100094; Active phase: DB-5; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Alves, R.J.V.; Pinto, A.C.; da Costa, A.V.M.; Rezende, C.M., Zizyphus mauritiana Lam. (Rhamnaceae) and the chemical composition of its floral fecal odor, J. Braz. Chem. Soc., 16(3B), 2005, 654-656.) NIST Spectra nist ri

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

Density: 1.2±0.1 g/cm3
Boiling Point: 278.3±13.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Enthalpy of Vaporization: 54.6±3.0 kJ/mol
Flash Point: 115.5±13.3 °C
Index of Refraction: 1.546
Molar Refractivity: 39.9±0.3 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.96
ACD/LogD (pH 5.5): 0.82
ACD/BCF (pH 5.5): 1.37
ACD/KOC (pH 5.5): 21.78
ACD/LogD (pH 7.4): -0.84
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 47 Å2
Polarizability: 15.8±0.5 10-24cm3
Surface Tension: 44.9±3.0 dyne/cm
Molar Volume: 126.0±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) = 1.96
 Log Kow (Exper. database match) = 1.96
 Exper. Ref: Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 283.34 (Adapted Stein & Brown method)
 Melting Pt (deg C): 77.37 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.000144 (Modified Grain method)
 MP (exp database): 185 deg C
 BP (exp database): 276.5 deg C
 Subcooled liquid VP: 0.00673 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): 1573
 log Kow used: 1.96 (expkow database)
 no-melting pt equation used
 Water Sol (Exper. database match) = 530 mg/L (37 deg C)
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 874.24 mg/L
 Wat Sol (Exper. database match) = 530.00
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 6.41E-009 atm-m3/mole
 Group Method: 3.70E-008 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 1.833E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 1.96 (exp database)
 Log Kaw used: -6.582 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 8.542
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.9839
 Biowin2 (Non-Linear Model) : 0.9960
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.8927 (weeks )
 Biowin4 (Primary Survey Model) : 3.7131 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.8650
 Biowin6 (MITI Non-Linear Model): 0.9169
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.8184
 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): 0.897 Pa (0.00673 mm Hg)
 Log Koa (Koawin est ): 8.542
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 3.34E-006 
 Octanol/air (Koa) model: 8.55E-005 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.000121 
 Mackay model : 0.000267 
 Octanol/air (Koa) model: 0.00679 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 9.3119 E-12 cm3/molecule-sec
 Half-Life = 1.149 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 13.784 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.000194 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 10.32
 Log Koc: 1.013 

 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: 1.96 (expkow database)

 Volatilization from Water:
 Henry LC: 3.7E-008 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 1.952E+004 hours (813.3 days)
 Half-Life from Model Lake : 2.13E+005 hours (8877 days)

 Removal In Wastewater Treatment:
 Total removal: 2.21 percent
 Total biodegradation: 0.10 percent
 Total sludge adsorption: 2.12 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 0.539 27.6 1000 
 Water 25.3 360 1000 
 Soil 74.1 720 1000 
 Sediment 0.0856 3.24e+003 0 
 Persistence Time: 609 hr
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