Bis(2-chloroethyl)selenide

Bis(2-chloroethyl)selenide is the organoselenium compound with the formula Se(CH₂CH₂Cl)₂. As a haloalkyl derivative of selenium, it is an analogue of bis(2-chloroethyl)sulfide, the prototypical sulfur mustard used in chemical warfare. Bis(2-chloroethyl)selenide has not been used as a chemical warfare agent, however it is still a potent alkylating agent and has potential in chemotherapy.^{[1][2][3][4][5]}

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Selenium mustard

Names
Preferred IUPAC name 1-Chloro-2-[(2-chloroethyl)selanyl]ethane
Identifiers
CAS Number	4730-83-0
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL288408
ChemSpider	23134672
PubChem CID	14699165
CompTox Dashboard (EPA)	DTXSID701336544
InChI InChI=1S/C4H8Cl2Se/c5-1-3-7-4-2-6/h1-4H2 Key: FFMUKNDYULFLJK-UHFFFAOYSA-N
SMILES C(C[Se]CCCl)Cl
Properties
Chemical formula	C4H8Cl2Se
Molar mass	205.98 g·mol−1
Appearance	low-melting colorless solid
Melting point	24 °C (75 °F; 297 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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