ChemSpider 2D Image | linuron | C9H10Cl2N2O2

linuron

  • Molecular FormulaC9H10Cl2N2O2
  • Average mass249.094 Da
  • Monoisotopic mass248.011932 Da
  • ChemSpider ID9130

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1-(3,4-Dichlorophenyl)-3-methoxy-3-methyluree [French] [ACD/IUPAC Name]
206-356-5 [EINECS]
3-(3,4-Dichloor-fenyl)-1-methoxy-1-methylureum [Dutch]
3-(3,4-Dichloro-fenil)-1-metossi-1-metil-urea [Italian]
3-(3,4-Dichlorophenyl)-1-methoxy-1-methylurea [ACD/IUPAC Name]
3-(3,4-Dichlorophényl)-1-méthoxy-1-méthylurée [French] [ACD/IUPAC Name]
3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff [German] [ACD/IUPAC Name]
3-(3,4-Dichlor-phenyl)-1-methoxy-1-methyl-harnstoff [German]
3-(3,4-Dicloro-fenil)-1-metossi-1-metil-urea [Italian]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

01XP1SU59O [DBID]
A3964/0168931 [DBID]
BRN 2128725 [DBID]
C11007 [DBID]
Caswell No. 528 [DBID]
EPA Pesticide Chemical Code 035506 [DBID]
Hoe 002810 [DBID]
HOE 2810 [DBID]
HSDB 1733 [DBID]
UNII:01XP1SU59O [DBID]
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  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Toxicity:

      Organic Compound; Organochloride; Pesticide; Herbicide; Synthetic Compound Toxin, Toxin-Target Database T3D4518
    • Chemical Class:

      A member of the class of phenylureas that is <element>N</element>-methyl urea substituted by a methoxy group at position 1 and a 3,4-dichlorophenyl group at position 3. ChEBI CHEBI:6482
      A member of the class of phenylureas that is N-methyl urea substituted by a methoxy group at position 1 and a 3,4-dichlorophenyl group at position 3. ChEBI https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:6482, CHEBI:6482
  • Gas Chromatography
    • Retention Index (Kovats):

      1878 (estimated with error: 89) NIST Spectra mainlib_59461, replib_119003, replib_157298
      1927 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 100 C; End T: 270 C; CAS no: 330552; Active phase: DB-1; Carrier gas: He; Data type: Kovats RI; Authors: Hall, G.L.; Whitehead, W.E.; Mourer, C.R.; Shibamoto, T., A new gas chromatographic retention index for pesticides and related compounds, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 9, 1986, 266-271.) NIST Spectra nist ri
      1952 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Description: 50C(1min)=>20C/min=>150C=>10C/min=>280C(4min); CAS no: 330552; Active phase: HP-5; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Tanabe, A.; Mitobe, H.; Kawata, K.; Sakai, M.; Yasuhara, A., New monitoring system for ninety pesticides and related compounds in river water by solid-phase extraction with determination by gas chromatography/mass spectrometry, J. AOAC Int., 83(1), 2000, 61-77.) NIST Spectra nist ri
      1960 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 100 C; End T: 270 C; CAS no: 330552; Active phase: DB-5; Carrier gas: He; Data type: Kovats RI; Authors: Hall, G.L.; Whitehead, W.E.; Mourer, C.R.; Shibamoto, T., A new gas chromatographic retention index for pesticides and related compounds, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 9, 1986, 266-271.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1931.2 (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: 5 K/min; Start T: 55 C; End T: 210 C; End time: 30 min; Start time: 2 min; CAS no: 330552; Active phase: DB-1; Data type: Normal alkane RI; Authors: Albanis, T.A.; Hela, D.G., Multi-residue pesticide analysis in environmental water samples using solid-phase extraction discs and gas chromatography with flame thermionic and mass-selective detection, J. Chromatogr. A, 707, 1995, 283-292.) NIST Spectra nist ri
      1921.4 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Description: 80 0C (0.5 min) ^ 25 0C/min -> 185 0C ^ 5 0C/min -> 225 0C (3 min); CAS no: 330552; Active phase: Methyl Silicone; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Szeto, S.Y.; Price, P.M., Persistence of pesticide residues in mineral and organic soils in the Fraser Valley of British Columbia, J. Agric. Food Chem., 39(9), 1991, 1679-1684.) NIST Spectra nist ri
      1918.6 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 1.1 m; Column type: Packed; Heat rate: 8.5 K/min; Start T: 50 C; End T: 300 C; CAS no: 330552; Active phase: OV-101; Carrier gas: N2; Substrate: Chromosorb W HP; Data type: Normal alkane RI; Authors: Saxton, W.L., Emergence temperature indices and relative retention times of pesticides and industrial chemicals determined by linear programmed temperature gas chromatography, J. Chromatogr., 393, 1987, 175-194.) NIST Spectra nist ri
      1918.3 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.247 mm; Column length: 15 m; Column type: Capillary; Description: 1 min at 90 C; 90-150 C at 20 deg/min; 150-250 C at 5 deg/min; hold at 250 C for elution of last component; CAS no: 330552; Active phase: SE-30; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Ripley, B.D.; Braun, H.E., Retention time data for organochlorine, organophosphorus, and organonitrogen pesticides on SE-30 capillary column and application of capillary gas chromatography to pesticide residue analysis, J. Ass. Offic. Anal. Chem, 66(5), 1983, 1084-1095.) NIST Spectra nist ri
      1921.8 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 6 ft; Column type: Packed; CAS no: 330552; Active phase: DC-200; Carrier gas: He; Substrate: Chromosorb W HP (80-100 mesh); Data type: Normal alkane RI; Authors: Laski, R.R.; Watts, R.R., Gas chromatography of organonitrogen pesticides, using a nitrogen-specific detection system, J. Ass. Offic. Anal. Chem, 55(2), 1973, 328-332.) NIST Spectra nist ri
      1952 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50 0C (1 min) ^ 20 0C/min -> 150 0C ^ 10 0C/min -> 280 0C; CAS no: 330552; Active phase: HP-5; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kawara, K.; Asada, T.; Oikawa, K.; Tanabe, A., Multiresidue determination of pesticides in sediments by ultrasonically assisted extraction and gas chromatography/mass spectrometry, J. AOAC International, 88(5), 2005, 1440-1451.) NIST Spectra nist ri
      1946.4 (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(2min) =>3C/min =>175C (4min) => 3C/min => 240C => 7C/min=>320C(10min); CAS no: 330552; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Lacorte, S.; Guiffard, I.; Fraisse, D.; Barcelo, D., Broad spectrum analysis of 109 priority compounds listed in the 76/464/CEE council directive using solid-phase extraction and GC/EI/MS, Anal. Chem., 72, 2000, 1430-1440.) NIST Spectra nist ri
      1940.9 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Description: 100C(1min) => 30C/min=> 150C(2min) => 3C/min=> 205C => 10C/min =>260C(29min); CAS no: 330552; Active phase: SE-54; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Stan, H.-J., Pesticide residue analysis in foodstuffs applying capillary gas chromatography with mass spectrometric detection State-of-the-art use of modified DFG-multimethod S19 and automated data evaluation, J. Chromatogr. A, 892, 2000, 347-377.) NIST Spectra nist ri
      1963.6 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 60 C; End T: 260 C; End time: 12 min; CAS no: 330552; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mogadati, P.; Louis, J.B.; Rosen, J.D., Multiresidue determination of pesticides in high-organic-content soils by solid-phase extraction and gas chromatography/mass spectrometry, J. AOAC Int., 82(3), 1999, 705-715.) NIST Spectra nist ri
      1938.4 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 29 m; Column type: Capillary; Description: 80 C (1 min) ^ 6 C/min -> 200 C (3 min) ^ 6 C/min -> 260 C (8 min); CAS no: 330552; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Papadopoulou-Mourkidou, E.; Patsias, J.; Kotopoulou, A., Determination of pesticides in soils by gas chromatography-ion trap mass spectrometry, J. AOAC Int., 80(2), 1997, 447-454.) NIST Spectra nist ri
      1931.4 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 80(1)-6^ ->200(3)-6^ -> 260(10); CAS no: 330552; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Patsias, J.; Papadopoulou-Mourkidou, E., Rapid method for the analysis of a variety of chemical classes of pesticides in surface and ground waters by off-line solid phase extraction and gas chromatography-ion trap mass spectrometry, J. Chromatogr. A, 740, 1996, 83-98.) NIST Spectra nist ri
      1931.7 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Description: 85 0C (1 min) ^ 40 0C/min -> 150 0C (2 min) ^ 10 0C/min -> 280 0C (20 min); CAS no: 330552; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Holland, P.T.; McNaughton, D.E.; Malcolm, C.P., Multiresidue analysis of pesticides in wines by solid-phase extraction, J. AOAC Int., 77(1), 1994, 79-86.) 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: 361.7±52.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.9 mmHg at 25°C
Enthalpy of Vaporization: 64.1±3.0 kJ/mol
Flash Point: 172.6±30.7 °C
Index of Refraction: 1.556
Molar Refractivity: 59.6±0.5 cm3
#H bond acceptors: 4
#H bond donors: 1
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 3.33
ACD/LogD (pH 5.5): 2.50
ACD/BCF (pH 5.5): 46.44
ACD/KOC (pH 5.5): 535.60
ACD/LogD (pH 7.4): 2.39
ACD/BCF (pH 7.4): 35.78
ACD/KOC (pH 7.4): 412.75
Polar Surface Area: 45 Å2
Polarizability: 23.6±0.5 10-24cm3
Surface Tension: 41.0±7.0 dyne/cm
Molar Volume: 185.2±7.0 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) =  2.91
    Log Kow (Exper. database match) =  3.20
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  365.91  (Adapted Stein & Brown method)
    Melting Pt (deg C):  137.23  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.21E-005  (Modified Grain method)
    MP  (exp database):  93 deg C
    VP  (exp database):  1.43E-06 mm Hg at 25 deg C
    Subcooled liquid VP: 6.73E-006 mm Hg (25 deg C, exp database VP )

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  44.27
       log Kow used: 3.20 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  75 mg/L (25 deg C)
        Exper. Ref:  USDA PESTICIDE PROP DATABASE

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  81.998 mg/L
    Wat Sol (Exper. database match) =  75.00
       Exper. Ref:  USDA PESTICIDE PROP DATABASE

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.15E-008  atm-m3/mole
   Group Method:   Incomplete
   Exper Database: 6.25E-09  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  8.959E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.20  (exp database)
  Log Kaw used:  -6.593  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  9.793
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.2641
   Biowin2 (Non-Linear Model)     :   0.0104
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.2355  (months      )
   Biowin4 (Primary Survey Model) :   3.1577  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.0089
   Biowin6 (MITI Non-Linear Model):   0.0090
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4139
 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):  0.000897 Pa (6.73E-006 mm Hg)
  Log Koa (Koawin est  ): 9.793
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.00334 
       Octanol/air (Koa) model:  0.00152 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.108 
       Mackay model           :  0.211 
       Octanol/air (Koa) model:  0.109 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  10.3436 E-12 cm3/molecule-sec
      Half-Life =     1.034 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    12.409 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.159 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  349.8
      Log Koc:  2.544 

 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 = 1.764 (BCF = 58.08)
       log Kow used: 3.20 (expkow database)

 Volatilization from Water:
    Henry LC:  6.25E-009 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River: 1.479E+005  hours   (6160 days)
    Half-Life from Model Lake : 1.613E+006  hours   (6.721E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               7.80  percent
    Total biodegradation:        0.14  percent
    Total sludge adsorption:     7.66  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       0.0293          24.8         1000       
   Water     10.2            1.44e+003    1000       
   Soil      89.3            2.88e+003    1000       
   Sediment  0.415           1.3e+004     0          
     Persistence Time: 2.65e+003 hr




                    

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