|Preferred IUPAC name
2-[Di(propan-2-yl)amino]ethyl ethyl methylphosphonite
2-(Diisopropylamino)ethyl ethyl methylphosphonite
Isopropyl aminoethylmethyl phosphonite
O-(2-diisopropylaminoethyl) O'-ethyl methylphosphonite
3D model (JSmol)
|Odor||Strong fishy odor|
|Slightly soluble in water|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Isopropyl aminoethylmethyl phosphonite (NATO designation QL), also known as O-(2-diisopropylaminoethyl) O'-ethyl methylphosphonite, is a precursor chemical to the nerve agent VX. It is a colorless liquid with a strong fishy odor, and is slightly soluble in water. 
Uses in chemical warfare
QL is a component in binary chemical weapons, mainly VX nerve agent. It, along with methylphosphonyl difluoride (DF), was developed during the 1980s in order to replace an aging stockpile of unitary chemical weapons. QL is listed as a "Schedule One" chemical by the Chemical Weapons Convention.
- National Research Council, et al. Systems and Technologies for the Treatment of Non-stockpile Chemical Warfare Materiel, (Google Books), National Academies Press, 2002, p. 14, (ISBN 0309084520), accessed October 21, 2008.
- "Schedule One Chemicals", Chemical Weapons Convention, US Government website, Retrieved November 15, 2008.
- Croddy, Eric and Wirtz, James J. Weapons of Mass Destruction: An Encyclopedia of Worldwide Policy, Technology, and History, (Google Books), ABC-CLIO, 2005, p. 238, (ISBN 1851094903), accessed October 21, 2008.