Cacodyl

Cacodyl
Ball and stick model of cacodyl	Space-filling model of cacodyl
Names
	Preferred IUPAC name Tetramethyldiarsane
	Other names Tetramethyldiarsenic(As—As); Bis(dimethylarsenic)(As—As); Tetramethyldiarsine
Identifiers
CAS Number	471-35-2 ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	71351 ;
ECHA InfoCard	100.006.766
EC Number	207-440-4;
PubChem CID	79018;
UNII	11N299093L ;
CompTox Dashboard (EPA)	DTXSID30197038 ;
	InChI InChI=1S/C4H12As2/c1-5(2)6(3)4/h1-4H3 Key: RSKPLCGMBWEANE-UHFFFAOYSA-N ; InChI=1/C4H12As2/c1-5(2)6(3)4/h1-4H3 Key: RSKPLCGMBWEANE-UHFFFAOYAG;
	SMILES [As]([As](C)C)(C)C; C[As](C)[As](C)C;
Properties
Chemical formula	C4H12As2
Molar mass	209.983 g·mol−1
Magnetic susceptibility (χ)	-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). verify (what is ?) Infobox references

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.

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

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

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