VX nerve agent

VX

Names
IUPAC name Ethyl ({2-[bis(propan-2-yl)amino]ethyl}sulfanyl)(methyl)phosphinate
Systematic IUPAC name Ethyl ({2-[bis(propan-2-yl)amino]ethyl}sulfanyl)(methyl)phosphinate
Other names [2-(Diisopropylamino)ethyl]-O-ethyl methylphosphonothioate Ethyl {[2-(diisopropylamino)ethyl]sulfanyl}(methyl)phosphinate Ethyl N-2-diisopropylaminoethyl methylphosphonothiolate
Identifiers
CAS Number	50782-69-9 Y 51848-47-6 Y 53800-40-1 Y 65143-05-7 N
3D model (Jmol)	Interactive image Interactive image
ChEBI	CHEBI:609247 N
ChEMBL	ChEMBL483105 Y
ChemSpider	36386 Y
MeSH	VX
PubChem	39793
InChI InChI=1S/C11H26NO2PS/c1-7-14-15(6,13)16-9-8-12(10(2)3)11(4)5/h10-11H,7-9H2,1-6H3 Y Key: JJIUCEJQJXNMHV-UHFFFAOYSA-N Y InChI=1/C11H26NO2PS/c1-7-14-15(6,13)16-9-8-12(10(2)3)11(4)5/h10-11H,7-9H2,1-6H3 Key: JJIUCEJQJXNMHV-UHFFFAOYAV
SMILES CCOP(C)(=O)SCCN(C(C)C)C(C)C O=P(OCC)(SCCN(C(C)C)C(C)C)C
Properties
Chemical formula	C11H26NO2PS
Molar mass	267.37 g·mol−1
Density	1.0083 g cm−3
Melting point	−3.90 °C (24.98 °F; 269.25 K)
Boiling point	300 °C (572 °F; 573 K)
log P	2.047
Vapor pressure	0.09 Pa
Hazards
NFPA 704	1 4 1
Flash point	159 °C (318 °F; 432 K)
Lethal dose or concentration (LD, LC):
LD50 (median dose)	7 µg/kg (intravenous, rat)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

VX (IUPAC name: O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate), an extremely toxic organophosphate, is a tasteless and odorless liquid with an amber-like color that severely disrupts the body's nervous system and is used as a nerve agent in chemical warfare. Ten milligrams (0.00035 oz) is sufficient for it to be fatal through skin contact, and the median lethal dose for inhalation is estimated to be 30–50 mg·min/m³. As a chemical weapon, it is classified as a weapon of mass destruction (WMD) by the United Nations Resolution 687. The production and stockpiling of VX exceeding 100 grams (3.53 oz) per year was outlawed by the Chemical Weapons Convention of 1993. The only exception is for "research, medical or pharmaceutical purposes outside a single small-scale facility in aggregate quantities not exceeding 10 kg [22 lb] per year per facility".

The VX nerve agent is the best-known of the V-series of nerve agents and is considered an area denial weapon due to its physical properties. It is far more potent than sarin, another well-known nerve agent toxin, but works in a similar way.

With its high viscosity and low volatility, VX has the texture and feel of motor oil. This makes it especially dangerous, as it has a high persistence in the environment. It is odorless and tasteless, and can be distributed as a liquid, either pure or as a mixture with a clay or talc in the form of thickened agent, or as an aerosol.