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Basic Information
CAS No.: 329-99-7
Name: cyclohexyl methylphosphonofluoridate
Molecular Structure:
Molecular Structure of 329-99-7 (cyclohexyl methylphosphonofluoridate)
Formula: C7H14 F O2 P
Molecular Weight: 180.159
Synonyms: Phosphonofluoridicacid, methyl-, cyclohexyl ester (6CI,7CI,8CI,9CI); CMPF; Cyclohexylmethylphosphonofluoridate; Cyclosarin; Cyclosin; Cyclosin (chemical warfareagent); GF; GF (chemical warfare agent); Methyl cyclohexylfluorophosphonate;O-Cyclohexyl methylphosphonofluoridate
Density: 1.09g/cm3
Melting Point: -30oC
Boiling Point: 237.2°Cat760mmHg
Flash Point: 97.3°C
Safety: A deadly poison by subcutaneous route. When heated to decomposition it emits toxic fumes of POx and F−.
PSA: 36.11000
LogP: 3.12810
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Chemistry

The IUPAC name of Cyclosarin (CAS NO.329-99-7):
 [Fluoro(methyl)phosphoryl]oxycyclohexane
Synonyms: Cyclohexyl methylphosphonofluoridate ; O-cyclohexyl-methylphosphonofluoridate ; Agentgf ; Methyl cyclohexylfluorophosphonate
CAS: 329-99-7 
Molecular Weight: 180.157024 g/mol
Molecular Formula: C7H14FO2P 
Molecular Structure:

Index of Refraction: 1.414 
Density: 1.09 g/cm3 
Flash Point: 97.3 °C 
Boiling Point: 237.2 °C at 760 mmHg 
Air & Water Reactions:Likely hydrolyzed by water, rapidly hydrolyzed by dilute aqueous sodium hydroxide

Production

Reactivity Profile: Acidic conditions produce hydrogen fluoride; alkaline conditions produce isopropyl alcohol and polymers. When heated to decomposition or reacted with steam, cyclohexyl methylphosphonofluoridate emits very toxic fumes of fluorides and oxides of phosphorus. Slightly corrosive to steel. Hydrolyzed by water.

Toxicity Data With Reference

The toxicity of Cyclosarin (CAS NO.329-99-7):

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 subcutaneous 100ug/kg (0.1mg/kg)   Canadian Journal of Physiology and Pharmacology. Vol. 44, Pg. 745, 1966.
hamster LD50 subcutaneous 130ug/kg (0.13mg/kg)   Canadian Journal of Physiology and Pharmacology. Vol. 46, Pg. 109, 1968.
mouse LD50 subcutaneous 400ug/kg (0.4mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: COMA

GASTROINTESTINAL: NAUSEA OR VOMITING		 Science Journal. Vol. 3(4), Pg. 33, 1967.
rabbit LD50 subcutaneous 100ug/kg (0.1mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: NAUSEA OR VOMITING

BEHAVIORAL: COMA		 Science Journal. Vol. 3(4), Pg. 33, 1967.
rat LD50 intramuscular 80ug/kg (0.08mg/kg)   Pharmacology and Toxicology Vol. 84, Pg. 41, 1999.
rat LD50 subcutaneous 225ug/kg (0.225mg/kg)   Canadian Journal of Physiology and Pharmacology. Vol. 44, Pg. 745, 1966.

Safety Profile

The safety information of Cyclosarin (CAS NO.329-99-7):
A deadly poison by subcutaneous route. When heated to decomposition it emits toxic fumes of POx and F−.
Health Hazard: Median lethal dose (mg-min/m3): 2500 by skin (vapor) or 350 (liquid); 35 inhaled. Median incapacitating dose: 25 inhaled. Eye/skin toxicity: Very high. Rate of action: Very rapid. Physiological action: Cessation of breath-death may follow. Detoxification rate: Low. (ANSER)