Cacodyl oxide

Cacodyl oxide
Names


IUPAC name Dimethylarsinous anhydride
Identifiers
CAS Number	503-80-0^Y
3D model (Jmol)	Interactive image
ChemSpider	10002^N
PubChem CID	10431
InChI InChI=1S/C4H12As2O/c1-5(2)7-6(3)4/h1-4H3^N Key: LOKPKYSOCCPWIZ-UHFFFAOYSA-N^N InChI=1/C4H12As2O/c1-5(2)7-6(3)4/h1-4H3 Key: LOKPKYSOCCPWIZ-UHFFFAOYAL
SMILES C[As](C)O[As](C)C
Properties
Chemical formula	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).
N (what is ^YN ?)
Infobox references

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.

"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. It has been used as a denaturing and warning agent.