VX

• Formula: C₁₁H₂₆NO₂PS
• Molecular weight: 267.368
• IUPAC Standard InChI: InChI=1S/C11H26NO2PS/c1-7-14-15(6,13)16-9-8-12(10(2)3)11(4)5/h10-11H,7-9H2,1-6H3 Copy

  
• IUPAC Standard InChIKey: JJIUCEJQJXNMHV-UHFFFAOYSA-N Copy
• CAS Registry Number: 50782-69-9
• 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: Phosphonothioic acid, methyl-, S-[2-[bis(1-methylethyl)amino]ethyl] O-ethyl ester; O-Ethyl S-(2-diisopropylaminoethyl) methylphosphonothioate; O-Ethyl S-(2-diisopropylaminoethyl) methylthiophosphonate; Tx 60; O-Ethyl S-2-diisopropylaminoethyl methylphosphonothiolate; S-[2-(Diisopropylamino)ethyl] o-ethyl methylphosphonothioate; Methyl-phosphonothioic acid S-(2-diisopropylamino-ethyl) ester O-ethyl ester; Phosphonohioic acid, methyl, O-ethyl-S-(2-diisopropylaminoethyl) ester; Phosphonothioic acid, P-methyl-, S-(2-(bis(1-methylethyl)amino)ethyl) O-ethyl ester; VX agent; Methylthiophosphonic acid, O-ethyl-S-[2-(N,N-diisopropylamino)ethyl] ester
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• Information on this page:
  • Phase change data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

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

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, polar column, temperature ramp

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Normal alkane RI, non-polar column, temperature ramp

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

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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.

Rittfeldt, 2001
Rittfeldt, Lars, Determination of Vapor Pressure of Low-Volatility Compounds Using a Method To Obtain Saturated Vapor with Coated Capillary Columns, Anal. Chem., 2001, 73, 11, 2405-2411, https://doi.org/10.1021/ac010015v . [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]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Frostling, Åse, et al., 1974
Frostling, Harald; Åse, Kjell; Borgan, A.; Østvold, Terje; Bjørseth, Alf; Powell, D.L., The Vapour Pressure of O-Ethyl,S-2-(N,N-diisopropylamino)-ethylmethylphosphonothioate., Acta Chem. Scand., 1974, 28a, 83-85, https://doi.org/10.3891/acta.chem.scand.28a-0083 . [all data]

Kostiainen, 2000
Kostiainen, O., Gas Chromatography in Screening of Chemicals Related to the Chemical Weapons Convention in Encyclopedia of Analytical Chemistry, Meyers, R.A., ed(s)., John Wiley Sons Ltd, Chichester, 2000, 963-979. [all data]

D'agostino, Provost, et al., 1987
D'agostino, P.A.; Provost, L.R.; Visentini, J., Analysis of O-Ethyl S-[2-(Diisopropylamino)ethyl] Methylphosphonothiolate (VX) by Capillary Column Gas Chromatography-Mass Spectrometry, J. Chromatogr., 1987, 402, 221-232, https://doi.org/10.1016/0021-9673(87)80020-1 . [all data]

D'Agostino and Provost, 1985
D'Agostino, P.A.; Provost, L.R., Gas chromatographic retention indices of chemical warfare agents and simulants, J. Chromatogr., 1985, 331, 47-54, https://doi.org/10.1016/0021-9673(85)80005-4 . [all data]

Savel'eva, Zenkevich, et al., 2003
Savel'eva, E.I.; Zenkevich, I.G.; Radilov, A.S., Identification the Products of Chemical Neutralization of O-Isobutyl-S-(2-diethylaminoethyl)methylthiophosphonate in the Composition of Bitumen-Salt Matrices, Zh. Anal. Khim. (Rus.), 2003, 58, 2, 135-145. [all data]

Söderström, Ketola, et al., 1995
Söderström, M.T.; Ketola, R.A.; Kostiainen, O., Identification of some nerve agent homologues and dialkyl methylphosphonates by gas chromatography/Fourier transform infrared spectrometry. Part II. Spectral search with the help of retention indices, Fresenius J. Anal. Chem., 1995, 352, 6, 550-556, https://doi.org/10.1007/BF00323072 . [all data]

Staples, 2006
Staples, E.J., Creating a compound library for chemical warfare agents for the ZNose, 2006, retrieved from http://www.estcal.com/TechPapers/Security/CWA-Libraries.pdf. [all data]

Tsunoda, 2005
Tsunoda, N., The sarin incidents in Japan and mass spectrometry, J. MAss Spectrom. Soc. Japan, 2005, 53, 3, 157-163, https://doi.org/10.5702/massspec.53.157 . [all data]

OPCW, 1997
OPCW, Conference of the States Parties C-I/DEC.64 (22 May 1997), 1997, retrieved from http://www.opcw.org/html/global/c_series/csp1/CI_DEC64.html. [all data]

Notes

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

• Symbols used in this document:
  

  ΔvapH

  Enthalpy of vaporization

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