Ethyldichloroarsine

Ethyldichloroarsine
Names
	Preferred IUPAC name Ethylarsonous dichloride
	Other names ED; Dichloroethylarsane; DICK
Identifiers
CAS Number	598-14-1 ;
3D model (JSmol)	Interactive image;
ChemSpider	11219 ;
ECHA InfoCard	100.009.019
EC Number	209-919-3;
PubChem CID	11711;
RTECS number	CH3500000;
UNII	4Z7627500U;
UN number	1892
CompTox Dashboard (EPA)	DTXSID6060505 ;
	InChI InChI=1S/C2H5AsCl2/c1-2-3(4)5/h2H2,1H3 Key: LQSFEOMOHFPNEB-UHFFFAOYSA-N;
	SMILES CC[As](Cl)Cl;
Properties
Chemical formula	C2H5AsCl2
Molar mass	174.8893 g/mol
Appearance	Colorless, mobile liquid
Density	1.742 @ 14 °C
Melting point	−65 °C (−85 °F; 208 K)
Boiling point	156 °C (313 °F; 429 K) (decomposes)
Solubility in water	Soluble in alcohol, benzene, ether, and water
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Highly toxic, irritant
	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

Ethyldichloroarsine, sometimes abbreviated "ED" and also known as ethyl Dick, is an organoarsenic compound with the formula CH₃CH₂AsCl₂. This colourless volatile liquid is a highly toxic obsolete vesicant or blister agent that was used during World War I in chemical warfare. The molecule is pyramidal with the Cl-As-Cl and C-As-Cl angles approaching 90° (see image). Ethyldichloroarsine has high chronic toxicity, similar to lewisite.

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