- Dimethylamidoethoxyphosphoryl cyanide
- Ethyl N,N-dimethylphosphoramidocyanidate
- Phosphoramidocyanidic acid, dimethyl-, ethyl ester
Colorless to brown liquid with a faint fruity odor.
Chemical warfare agent, military nerve gas. G series nerve agent.
Registry Numbers and Inventories.
Drug; Human Data
Swiss Giftliste 1
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.04 (25 C)
Vapor density (air=1)
1.077 g/cm3 (20 C)
Solubility in water
1.425 (20 C)
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).
(Non-Specific -- Poison A, Liquid) When handling, avoid breathing vapors, keep upwind, avoid bodily contact with the material, and upon skin contact wash with soap and water. Speed in removing material from skin is of extreme importance. Remove and isolate contaminated clothing and shoes.
Can react with oxidizing materials.
When heated to decomposition, can emit highly toxic fumes of phosphorus oxides.
Complete protection required; have available decontaminants (bleach, alkali) and atropine. Bleaching powder (chlorinated line) destroys Tabun but gives rise to cyanogen chloride.(Non-Specific -- Poison A, Liquid) Extinguish with alcohol foam, carbon dioxide, or dry chemical.
Combustible material: may burn but does not ignite readily.
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
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. Effects begin to appear 0.5-2 minutes after exposure to vapor. The symptoms in normal order of appearance are running nose; tightness of chest; dimness of vision; drooling & excessive sweating; nausea, vomiting; cramps & involuntary defecation or urination; twitching, jerking, & staggering; & headache, confusion, drowsiness, coma, & convulsion. These symptoms are followed by cessation of breathing & death.
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
USCG CHRIS Code