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| Names | |
|---|---|
| Preferred IUPAC name 2-[Di(propan-2-yl)amino]ethyl ethyl methylphosphonite | |
| Other names 2-(Diisopropylamino)ethyl ethyl methylphosphonite N-[2-(Ethoxy(methyl)phosphanyl)oxyethyl]-N-isopropyl-propan-2-amine Isopropyl aminoethylmethyl phosphonite O-(2-Diisopropylaminoethyl)O'-ethyl methylphosphonite | |
| Identifiers | |
3D model (JSmol) | |
| Abbreviations | QL |
| ChemSpider |
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| UNII | |
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| Properties | |
| C11H26NO2P | |
| Molar mass | 235.308 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | Strong fishyodor |
| Boiling point | 230 °C (446 °F; 503 K) |
| Slightly soluble inwater | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Isopropyl aminoethylmethyl phosphonite (NATO designationQL), also known asO-(2-diisopropylaminoethyl)O′-ethyl methylphosphonite, is aprecursor chemical to thenerve agentVX and VR-56. It is a colorless liquid with a strong fishy odor, and is slightly soluble in water.[1]
QL is manufactured by thetransesterification of diethyl methylphosphonite with2-(diisopropylamino)ethanol.[2][3]
QL is a component inbinary chemical weapons, mainlyVXnerve agent.[4] It, along withmethylphosphonyl difluoride (DF), was developed during the 1980s in order to replace an aging stockpile of unitarychemical weapons.[4] QL is listed as aSchedule 1 chemical by theChemical Weapons Convention.[5]
QL itself is a relatively non-toxic chemical.[6] However, when reacting with sulfur, thecorresponding sulfide of QLisomerizes into the highly toxic VX molecule.[4][6]
