Cacodyl

Cacodyl
Structural formula of cacodyl
Ball and stick model of cacodyl
Ball and stick model of cacodyl
Space-filling model of cacodyl
Space-filling model of cacodyl
Names
Preferred IUPAC name
Tetramethyldiarsane
Other names
Tetramethyldiarsenic(As—As)

Bis(dimethylarsenic)(As—As)

Tetramethyldiarsine
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.006.766 Edit this at Wikidata
EC Number
  • 207-440-4
UNII
  • InChI=1S/C4H12As2/c1-5(2)6(3)4/h1-4H3 checkY
    Key: RSKPLCGMBWEANE-UHFFFAOYSA-N checkY
  • InChI=1/C4H12As2/c1-5(2)6(3)4/h1-4H3
    Key: RSKPLCGMBWEANE-UHFFFAOYAG
  • [As]([As](C)C)(C)C
  • C[As](C)[As](C)C
Properties
C4H12As2
Molar mass 209.983 g·mol−1
-99.9·10−6 cm3/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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Cacodyl, also known as dicacodyl or tetramethyldiarsine, (CH3)2As–As(CH3)2, is an organoarsenic compound that constitutes a major part of "Cadet's fuming liquid" (named after the French chemist Louis Claude Cadet de Gassicourt). It is a poisonous oily liquid with an extremely unpleasant garlicky odor. Cacodyl undergoes spontaneous combustion in dry air.[1]

Cacodyl is also the name of the functional group or radical (CH3)2As.

  1. ^ Seyferth, Dietmar (2001). "Cadet's Fuming Arsenical Liquid and the Cacodyl Compounds of Bunsen". Organometallics. 20 (8): 1488–1498. doi:10.1021/om0101947.