2,4-D

• Formula: C₈H₆Cl₂O₃
• Molecular weight: 221.037
• IUPAC Standard InChI: InChI=1S/C8H6Cl2O3/c9-5-1-2-7(6(10)3-5)13-4-8(11)12/h1-3H,4H2,(H,11,12) Copy

  
• IUPAC Standard InChIKey: OVSKIKFHRZPJSS-UHFFFAOYSA-N Copy
• CAS Registry Number: 94-75-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Acetic acid, (2,4-dichlorophenoxy)-; (Dichlorophenoxy)acetic acid; (2,4-Dichlorophenoxy)acetic acid; (2,4-Dichlorophenyloxy)acetic acid; B-Selektonon; Dicopur; Esteron 99; Fernimine; Foredex 75; Hedonal, herbicide; Ipaner; Monosan; Netagrone; Pielik; U 46DP; Verton 2D; Vidon 638; Weedone; 2,4-D Acid; (2,4-Dichloor-fenoxy)-azijnzuur; (2,4-Dichlor-phenoxy)-essigsaeure; (2,4-Dichlorphenoxy)acetic acid; Acide 2,4-dichloro phenoxyacetique; Acido(2,4-dicloro-fenossi)-acetico; Agrotect; Amoxone; Chipco turf herbicide "D"; Chloroxone; Crop rider; Crotilin; Dacamine; Decamine; Ded-Weed LV-69; Dormone; DMA-4; Esteron; Esteron 44 weed killer; Esteron 76 BE; Estone; Fernesta; Fernoxone; Formula 40; Hedonal; Moxone; NSC 423; Pennamine; Pennamine D; Phenox; Planotox; Salvo; Tributon; U-5043; Vergemaster; Verton; Verton D; Vertron 2D; Visko-rhap low drift herbicides; Visko-rhap low volatile 4l; Weed-ag-bar; Weed-B-gon; Weed-Rhap; Weedar; Weedar-64; Weedez wonder bar; Weedone LV4; 2,4-Dwuchlorofenoksyoctowy kwas; Acme amine 4; Acme butyl ester 4; Acme LV 4; Amidox; BH 2,4-D; Brush-rhap; D 50; Debroussaillant 600; Desormone; Dicotox; Dinoxol; Emulsamine bk; Emulsamine E-3; ENT 8,538; Envert 171; Envert dt; Esteron brush killer; Esteron 99 concentrate; Esterone four; Farmco; Ferxone; Herbidal; Kwasu 2,4-dwuchlorofenoksyoctowego; Kwas 2,4-dwuchlorofenoksyoctowy; Kyselina 2,4-dichlorfenoxyoctova; Lawn-keep; Macrondray; Miracle; Netagrone 600; Plantgard; RCRA waste number U240; Rhodia; Spritz-hormin/2,4-D; Spritz-hormit/2,4-D; Super D weedone; Superormone concentre; Transamine; Trinoxol; U 46; Visko-rhap; Weedatul; Weed tox; Weedtrol; Diclordon; 2,4-Dichlorophenoxyethanoic acid; Mota Maskros; 2,4-D Mecoprop; Atlas D; Aminopielik 50SL; Barrage HF; Tiller S; Uniso; Dezormon; Esterone; Huragan
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• Information on this page:
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • UV/Visible spectrum
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Enthalpy of fusion

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• Not specified, most likely a prism, grating, or hybrid spectrometer.; (NO SPECTRUM, ONLY SCANNED IMAGE IS AVAILABLE)

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

• gas; HP-GC/MS/IRD

Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Gas Chromatography

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, custom temperature program

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References

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Donnelly, Drewes, et al., 1990
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W., Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry, Thermochim. Acta, 1990, 167, 2, 155, https://doi.org/10.1016/0040-6031(90)80476-F . [all data]

Plato and Glasgow, 1969
Plato, C.; Glasgow, A.R., Jr., Differential scanning calorimetry as a general method for determining the purity and heat of fusion of high-purity organic chemicals. Application to 95 compounds, Anal. Chem., 1969, 41, 2, 330, https://doi.org/10.1021/ac60271a041 . [all data]

Vecchio and Brunetti, 2005
Vecchio, Stefano; Brunetti, Bruno, Standard Sublimation Enthalpies of Some Dichlorophenoxy Acids and Their Methyl Esters, J. Chem. Eng. Data, 2005, 50, 2, 666-672, https://doi.org/10.1021/je049626l . [all data]

Donnelly, Drewes, et al., 1990, 2
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W., Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry, Thermochimica Acta, 1990, 167, 2, 155-187, https://doi.org/10.1016/0040-6031(90)80476-F . [all data]

Tameo and Kiyos, 1991
Tameo, O.; Kiyos, I., Simultaneous determination of pesticides by capillary gas chromatography, Cannot be traslated (in Japan), 1991, 14, 2, 109-122. [all data]

Notes

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

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