Methyl parathion

• Formula: C₈H₁₀NO₅PS
• Molecular weight: 263.207
• IUPAC Standard InChI: InChI=1S/C8H10NO5PS/c1-12-15(16,13-2)14-8-5-3-7(4-6-8)9(10)11/h3-6H,1-2H3 Copy

  
• IUPAC Standard InChIKey: RLBIQVVOMOPOHC-UHFFFAOYSA-N Copy
• CAS Registry Number: 298-00-0
• 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: Phosphorothioic acid, O,O-dimethyl O-(4-nitrophenyl) ester; Phosphorothioic acid, O,O-dimethyl O-(p-nitrophenyl) ester; Azofos; Azophos; BAY 11405; Dimethyl p-Nitrophenyl phosphorothionate; Dimethyl p-nitrophenyl thiophosphate; Dimethyl parathion; Dimethyl 4-nitrophenyl phosphorothionate; DALF; Folidol M; Folidol M-40; M-Parathion; Meptox; Metacid 50; Metacide; Metaphos; Methyl-E 605; Methylthiophos; Metron; Metron (pesticide); Nitrox; Nitrox 80; O,O-Dimethyl O-(p-nitrophenyl) phosphorothioate; O,O-Dimethyl O-(p-nitrophenyl) thionophosphate; O,O-Dimethyl O-(p-nitrophenyl) thiophosphate; Parathion methyl; Parathion methyl homolog; Penncap M; Sinafid M-48; Thiophenit; Vofatox; Wofatox; Wofotox; 8056HC; O,O-Dimethyl O-4-nitrophenyl phosphorothioate; Bladan M; Cekumethion; Devithion; ENT 17292; Methyl-bladan; OMS 213; Parataf; Paratox; Partron M; Tekwaisa; Penncap MLS; Dimethyl 4-nitrophenyl phosphorothioate; Quinophos; Yphos; Paratuf; Folidol 600; Metafos; Oleovofotox; O,O-dimethyl-O-(4-nitrophenyl) thiophosphate
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• Information on this page:
  • Phase change data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Gas Chromatography
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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 vaporization

Enthalpy of sublimation

Enthalpy of fusion

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

References

Go To: Top, Phase change data, Mass spectrum (electron ionization), 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]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Kim, Woodrow, et al., 1984
Kim, Yong-Hwa; Woodrow, James E.; Seiber, James N., Evaluation of a gas chromatographic method calculating vapor pressures with organophosphorus pesticides, Journal of Chromatography A, 1984, 314, 37-53, https://doi.org/10.1016/S0021-9673(01)97721-0 . [all data]

Spencer and Cliath, 1983
Spencer, W.F.; Cliath, M.M., Measurement of pesticide vapor pressures, 1983, 57-71, https://doi.org/10.1007/978-1-4612-5462-1₆ . [all data]

Spencer, Shoup, et al., 1979
Spencer, William F.; Shoup, Thomas D.; Cliath, Mark M.; Farmer, Walter J.; Haque, Rizwanul, Vapor pressures and relative volatility of ethyl and methyl parathion, J. Agric. Food Chem., 1979, 27, 2, 273-278, https://doi.org/10.1021/jf60222a016 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Notes

Go To: Top, Phase change data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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