ChemSpider 2D Image | 9H-Fluoren-9-one | C13H8O

9H-Fluoren-9-one

  • Molecular FormulaC13H8O
  • Average mass180.202 Da
  • Monoisotopic mass180.057510 Da
  • ChemSpider ID9824

More details:



Featured data source



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

9H-Fluoren-9-one [ACD/Index Name] [ACD/IUPAC Name]
486-25-9 [RN]
9-Fluorenone
9H-Fluoren-9-on [German] [ACD/IUPAC Name]
9H-Fluorén-9-one [French] [ACD/IUPAC Name]
Diphenylene ketone
fluoren-9-one
Fluorenone [Wiki]
[486-25-9]
207-630-7 [EINECS]
More...

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

CHEBI:17922 [DBID]
45505_RIEDEL [DBID]
46900_FLUKA [DBID]
A1356/0061154 [DBID]
AI3-00858 [DBID]
bmse000521 [DBID]
c0390 [DBID]
C06712 [DBID]
CCRIS 593 [DBID]
EU-0084734 [DBID]
More...
  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      yellow flakes, chips or crystalline powder Oxford University Chemical Safety Data (No longer updated) More details
    • Stability:

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 Oxford University Chemical Safety Data (No longer updated) More details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

      IPR-MUS LD50 > 2000 mg kg-1 Oxford University Chemical Safety Data (No longer updated) More details
    • Safety:

      CAUTION: May irritate eyes, skin, and respiratory tract Alfa Aesar A12910
      GHS07 Biosynth Q-200573
      H315; H319; H335 Biosynth Q-200573
      IRRITANT Matrix Scientific 086002
      Irritant SynQuest 2617-1-W0, 67908
      Minimize exposure. Oxford University Chemical Safety Data (No longer updated) More details
      P261; P280; P302+P352; P304+P340; P305+P351+P338; P312 Biosynth Q-200573
      Warning Biosynth Q-200573
  • Gas Chromatography
    • Retention Index (Kovats):

      1665 (estimated with error: 57) NIST Spectra mainlib_229079, replib_22191, replib_133679, replib_259288
      1705 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 1.5 m; Column type: Packed; CAS no: 486259; Active phase: SE-30; Carrier gas: He; Substrate: Chromosorb G HP (80-100 mesh); Data type: Kovats RI; Authors: Ramsey, J.D.; Lee, T.D.; Osselton, M.D.; Moffat, A.C., Gas-liquid chromatographic retention indices of 296 non-drug substances on SE-30 or OV-1 likely to be encountered in toxicological analyses, J. Chromatogr., 184, 1980, 185-206.) NIST Spectra nist ri
    • Retention Index (Lee):

      293.6 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Description: XX C ^ X C/min -> 170 C ^ 40 C/min -> 300 C (5 min); Check the values XX and X (bad xerox copy); CAS no: 486259; Active phase: BP-5; Data type: Lee RI; Authors: Kelly, G.W.; Bartle, K.D.; Clifford, A.A.; Robinson, R.E., Application of coupled LC-GC to the analysis of the polar fraction of diesel particulate matter, J. Hi. Res. Chromatogr., 15, 1992, 526-530., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 486259; Active phase: OV-101; Data type: Lee RI; Authors: Tucminen, A.; Wickstrom, K.; Pyysalo, H., Determination of Polycyclic Aromatic Compounds by GLC-Selected Ion Monitoring (SIM) Technique, J. Hi. Res. Chromatogr. & Chromatogr. Comm., , 1986, 469-471.) NIST Spectra nist ri
      293.09 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 120 C; End T: 280 C; CAS no: 486259; Active phase: SE-30; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Konig, J.; Balfanz, E.; Funcke, W.; Romanowski, T., Determination of oxygenated polycyclic aromatic hydrocarbons in airborne particulate matter by capillary gas chromatography and gas chromatography/mass spectrometry, Anal. Chem., 55, 1983, 599-603.) NIST Spectra nist ri
      294.5 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column length: 60 m; Column type: Capillary; CAS no: 486259; Active phase: DB-5; Data type: Lee RI; Authors: Fuentes, M.J.; Font, R.; Gomez-Rico, M.F.; Martin-Gullon, I., Pyrolysis and combustion of waste lubricant oil from diesel cars: Decomposition and pollutants, J. Anal. Appl. Pyrolysis, 79, 2007, 215-226.) NIST Spectra nist ri
      294.3 (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: 4 K/min; Start T: 40 C; End T: 300 C; Start time: 2 min; CAS no: 486259; Active phase: SPB-5; Data type: Lee RI; Authors: Knobloch, T.; Engewald, W., Identification of some polar polycyclic compounds in emissions from brown-coal-fired residential stoves, J. Hi. Res. Chromatogr., 16, 1993, 239-242., Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.3 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 50 C; End T: 200 C; End time: 15 min; Start time: 5 min; CAS no: 486259; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Shao, X.; Wang, G.; Sun, Y.; Zhang, R.; Xie, K.; Liu, H., Determination and Characterization of the Pyrolysis Products of Isoprocarb by GC-MS, J. Chromatogr. Sci., 44, 2006, 141-147.) NIST Spectra nist ri
      293.7 (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: 4 K/min; Start T: 40 C; End T: 300 C; Start time: 2 min; CAS no: 486259; Active phase: SPB-5; Data type: Lee RI; Authors: Knobloch, T.; Engewald, W., Identification of some polar polycyclic compounds in emissions from brown-coal-fired residential stoves, J. Hi. Res. Chromatogr., 16, 1993, 239-242., Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; CAS no: 486259; Active phase: DB-5MS; Data type: Lee RI; Authors: Aracil, I.; Font, R.; Conesa, J.A., Semivolatile and volatile compounds from the pyrolysis and combustion of polyvinyl chloride, J. Anal. Appl. Pyrolysis, 74, 2005, 465-478.) NIST Spectra nist ri
      294.03 (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: 50 C; End T: 310 C; End time: 10 min; Start time: 1.5 min; CAS no: 486259; Active phase: HP-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Pedersen, D.U.; Durant, J.L.; Taghizadeh, K.; Hemond, H.F.; Lafleur, A.L.; Cass, G.R., Human cell mutagenes in respirable airborne particles from the Northeastern United States. 2. Quantification of mutagenes and other organic compounds., Environ. Sci. Technol., 39(24), 2005, 9547-9560.) NIST Spectra nist ri
      290.24 (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: 486259; Active phase: LM-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee 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
      292.6 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; CAS no: 486259; Active phase: DB-5; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Lundstedt, S.; Haglund, P.; Oberg, L., Degradation and formation of polycyclic aromatic compounds during bioslurry treatment of an aged gasworks soil, Environ. Toxicol. Chem., 22(7), 2003, 1413-1420.) NIST Spectra nist ri
      293.64 (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: 10 K/min; Start T: 40 C; End T: 310 C; Start time: 1 min; CAS no: 486259; Active phase: DB-5MS; Phase thickness: 0.5 um; Data type: Lee RI; Authors: Chen, P.H.; Keeran, W.S.; Van Ausdale, W.A.; Schindler, D.R.; Roberts, D.W., Application of Lee retention indices to the confirmation of tentatively identified compounds from GC/MS analysis of environmental samples, Technical paper, Analytical Services Division, Environmental Science&Engineering, Inc, PO Box 1703, Gainesville, FL 32602, 2002, 11.) NIST Spectra nist ri
      291.28 (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: 486259; Active phase: LM-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee 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
      294.49 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column length: 12 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 285 C; CAS no: 486259; Active phase: SE-52; Data type: Lee RI; Authors: Boenke, A.; Ballschmiter, K., Fused quinones as retention index marker in high resolution gas chromatography with electron-capture detection (HRGC/ECD) of oxidized aromatic compounds, Fresenius J. Anal. Chem., 327, 1987, 44-45.) NIST Spectra nist ri
      294.13 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; CAS no: 486259; Active phase: DB-5; Data type: Lee RI; Authors: Naikwadi, K.P.; Charbonneau, G.M.; Karasek, F.W.; Clement, R.E., Separation and Identification of Organic Compounds in Air Particulate Extracts by High-Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry, J. Chromatogr., 398, 1987, 227-237.) NIST Spectra nist ri
      294.79 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.3 mm; Column length: 12 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 250 C; CAS no: 486259; Active phase: SE-52; Carrier gas: He; Phase thickness: 0.34 um; Data type: Lee RI; Authors: Lee, M.L.; Vassilaros, D.L.; White, C.M.; Novotny, M., Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic Hydrocarbons, Anal. Chem., 51(6), 1979, 768-773., Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; CAS no: 486259; Active phase: DB-5; Data type: Lee RI; Authors: Naikwadi, K.P.; Charbonneau, G.M.; Karasek, F.W.; Clement, R.E., Separation and Identification of Organic Compounds in Air Particulate Extracts by High-Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry, J. Chromatogr., 398, 1987, 227-237.) NIST Spectra nist ri
      293.88 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.26 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 300 C; End time: 20 min; Start time: 4 min; CAS no: 486259; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Rostad, C.E.; Pereira, W.E., Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 9, 1986, 328-334.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1693 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.25 mm; Column length: 25 m; Column type: Capillary; Description: 50 0C (2 min) ^ 20 0C/min -> 160 0C ^ 5 0C/min -> 210 0C ^ 10 0C/min -> 300 0C; CAS no: 486259; Active phase: Methyl Silicone; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Oda, J.; Yasuhara, A.; Matsunaga, K.; Saito, Y., Identification of polycyclic aromatic hydrocarbons of the particulate accumulated in the tunnel duct of freeway and generation of their oxygenated derivatives, Jpn. J. Toxicol. Environ. Health, 44(5), 1998, 334-351.) NIST Spectra nist ri
      1702 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.25 mm; Column length: 25 m; Column type: Capillary; Description: 50 0C (2 min) ^ 20 0C/min -> 160 0C ^ 5 0C/min -> 210 0C ^ 10 0C/min -> 300 0C; CAS no: 486259; Active phase: Methyl Silicone; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Oda, J.; Yasuhara, A.; Matsunaga, K.; Saito, Y., Identification of polycyclic aromatic hydrocarbons of the particulate accumulated in the tunnel duct of freeway and generation of their oxygenated derivatives, Jpn. J. Toxicol. Environ. Health, 44(5), 1998, 334-351.) NIST Spectra nist ri
      1663 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 80 C; End T: 260 C; CAS no: 486259; Active phase: Ultra-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Okumura, T., retention indices of environmental chemicals on methyl silicone capillary column, Journal of Environmental Chemistry (Japan), 1(2), 1991, 333-358.) NIST Spectra nist ri
      1705 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 486259; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Ardrey, R.E.; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. Chromatogr., 220, 1981, 195-252.) NIST Spectra nist ri
      1746 (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 (10min) => 3C/min => 120C => 10C/min =>250C (5min); CAS no: 486259; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Ansorena, D.; Astiasaran, I.; Bello, J., Influence of the simultaneous addition of the protease flavourzyme and the lipase novozyme 677BG on dry fermented sausage compounds extracted by SDE and analyzed by GC-MS, J. Agric. Food Chem., 48, 2000, 2395-2400.) NIST Spectra nist ri
    • Retention Index (Linear):

      1752 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.26 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 300 C; End time: 20 min; Start time: 4 min; CAS no: 486259; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Rostad, C.E.; Pereira, W.E., Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 9, 1986, 328-334.) NIST Spectra nist ri
      2697 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 35 C; End T: 195 C; End time: 90 min; Start time: 5 min; CAS no: 486259; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Chung, H.Y.; Yung, I.K.S.; Kim, J.-S., Comparison of volatile components in dried scallops (Chlamys farreri and Patinopecten yessoensis) prepared by boiling and steaming methods, J. Agric. Food Chem., 49, 2001, 192-202.) 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: 341.5±0.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.7 mmHg at 25°C
Enthalpy of Vaporization: 58.5±3.0 kJ/mol
Flash Point: 144.1±13.7 °C
Index of Refraction: 1.667
Molar Refractivity: 53.9±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 3.58
ACD/LogD (pH 5.5): 3.43
ACD/BCF (pH 5.5): 238.96
ACD/KOC (pH 5.5): 1753.95
ACD/LogD (pH 7.4): 3.43
ACD/BCF (pH 7.4): 238.96
ACD/KOC (pH 7.4): 1753.95
Polar Surface Area: 17 Å2
Polarizability: 21.4±0.5 10-24cm3
Surface Tension: 52.4±3.0 dyne/cm
Molar Volume: 144.8±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) =  3.55
    Log Kow (Exper. database match) =  3.58
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  331.67  (Adapted Stein & Brown method)
    Melting Pt (deg C):  99.48  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  5.72E-005  (Modified Grain method)
    MP  (exp database):  84 deg C
    BP  (exp database):  341.5 deg C
    Subcooled liquid VP: 0.00021 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):  3.737
       log Kow used: 3.58 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2.3064 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   6.77E-007  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.629E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.58  (exp database)
  Log Kaw used:  -4.558  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.138
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6686
   Biowin2 (Non-Linear Model)     :   0.4992
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7785  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5655  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3595
   Biowin6 (MITI Non-Linear Model):   0.2927
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.3192
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.028 Pa (0.00021 mm Hg)
  Log Koa (Koawin est  ): 8.138
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000107 
       Octanol/air (Koa) model:  3.37E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00386 
       Mackay model           :  0.0085 
       Octanol/air (Koa) model:  0.00269 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   6.1758 E-12 cm3/molecule-sec
      Half-Life =     1.732 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    20.783 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.00618 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1077
      Log Koc:  3.032 

 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 = 1.217 (BCF = 16.47)
       log Kow used: 3.58 (expkow database)

 Volatilization from Water:
    Henry LC:  6.77E-007 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:       1162  hours   (48.43 days)
    Half-Life from Model Lake : 1.279E+004  hours   (533 days)

 Removal In Wastewater Treatment:
    Total removal:              15.01  percent
    Total biodegradation:        0.20  percent
    Total sludge adsorption:    14.78  percent
    Total to Air:                0.03  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.07            41.6         1000       
   Water     22.6            360          1000       
   Soil      74.1            720          1000       
   Sediment  1.18            3.24e+003    0          
     Persistence Time: 518 hr




                    

Click to predict properties on the Chemicalize site


Feedback Form