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
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • 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

References

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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

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• 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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