Phosgene oxime

Phosgene oxime, or CX, is an organic compound with the formula Cl2CNOH. It is a potent chemical weapon, specifically a nettle agent, which is a type of blister agent. The compound itself is a colorless solid, but impure samples are often yellowish liquids. It has a strong, disagreeable and irritating odor. It is used as a reagent in organic chemistry.

Phosgene oxime
Names
Preferred IUPAC name
1,1-Dichloro-N-hydroxymethanimine
Other names
dichloroformaldoxime, dichloroformoxime, hydroxycarbonimidic dichloride, CX, dichloroformaldehyde oxime
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/CHCl2NO/c2-1(3)4-5/h5H Y
    Key: JIRJHEXNDQBKRZ-UHFFFAOYSA-N Y
  • InChI=1/CHCl2NO/c2-1(3)4-5/h5H
    Key: JIRJHEXNDQBKRZ-UHFFFAOYAP
  • Cl/C(Cl)=N\O
Properties
CHCl2NO
Molar mass 113.93 g·mol−1
Appearance colorless or white solid
Melting point 35 to 40 °C (95 to 104 °F; 308 to 313 K)
Boiling point 128 °C (262 °F; 401 K)
70%
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Highly toxic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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