Cacodyl oxide
Chemical compound / From Wikipedia, the free encyclopedia
Cacodyl oxide is a chemical compound of the formula [(CH3)2As]2O. This organoarsenic compound is primarily of historical significance since it is sometimes considered to be the first organometallic compound synthesized in relatively pure form.[1][2]
Quick Facts Names, Identifiers ...
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Preferred IUPAC name
Dimethylarsinous anhydride | |
Other names
TL-297 | |
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CompTox Dashboard (EPA) |
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Properties | |
C4H12As2O | |
Molar mass | 255.98 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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"Cadet's fuming liquid", which is composed of cacodyl and cacodyl oxide, was originally synthesized by heating potassium acetate with arsenic trioxide. It has a disagreeable odor and is toxic.
The molecular structure of [Ph2As]2O (Ph = phenyl), the tetraphenyl analogue of cacodyl oxide, has been established by X-ray crystallography.[3]