- Methylphosphonothioic acid S-[2-[bis(1-methylethyl)amino]ethyl] O-ethyl ester
- O-Ethyl S-(2-diisopropylaminoethyl) methylphosphonothiolate
Nerve gas, chemical warfare agent.
Registry Numbers and Inventories.
Drug; Reproductive Effector; Human Data
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.00035 (25 C)
Vapor density (air=1)
Solubility in water
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Decontaminants include bleach slurry and hot soapy water.
Use protective clothing and respiratory protection.
Combustible material: may burn but does not ignite readily.
Highly toxic nitrogen oxides and sulfur oxides. Avoid extreme heat.
Fire may produce irritating, corrosive and/or toxic gases.
Muscarinic CNS effects of nerve agents include seizures, respiratory depression, mental status changes, fatigue, lethargy, agitation, depression, hallucinations, slurred speech, ataxia and headache.
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
Sweating is a common muscarinic effect of nerve agent exposure.
Constriction of the pupil, tearing, and blurred or dim vision are common clinical findings. Occasionally prolonged dialation of the pupils may occur in severe poisonings. Excessive salivation commonly occurs.
Seek medical assistance.
Nerve agent vapors are heavier than air, which means that they will sink into low terrain and basements. Monitor ecg and adequacy of respirations and ventilation; supplemental oxygenation, frequent suctioning of secretions, endotracheal intubation, and assisted ventilation may be required.
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Immediately flush with running water for at least 20 minutes.
I; II; III