CS Gas

(rINNM)
CS Gas Chemical formula

Chemical information

CS Gazi; CS Spray; Gas CS.
Chemical formula: C10H5ClN2 = 188.6.
CAS — 2698-41-1.

Profile

CS gas (more properly CS spray) is the name commonly given to a particulate dispersion of α-(o-chlorobenzylidene) malonitrile, used as a riot-control agent or ‘tear gas’. Its toxic effects include irritation of the eyes and nose, with copious lachrymation and rhinorrhoea; blepharospasm; a burning sensation of the mouth and throat; tightness in the chest, with difficulty in breathing; coughing; an increase in salivation; and retching and vomiting. These effects usually disappear within 15 minutes after exposure ends. The effects of pre-existing disease of the respiratory tract may be exacerbated. Erythema and blistering of the skin may occur. If symptoms persist, the patient should be removed to a well ventilated area. Treatment is symptomatic. Contaminated skin may be washed with soap and water, but only if symptoms persist since exposure to water may initially exacerbate symptoms. If contamination of the eyes has been severe they should be irrigated with physiological saline or water.
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5. Anderson PJ, et al. Acute effects of the potent lacrimator o-chlorobenzylidene malonitrile (CS) tear gas. Hum Exp Toxicol 1996; 15: 461–5
6. Anonymous. “Safety” of chemical batons. Lancet 1998; 352: 159
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9. Blain PG. Tear gases and irritant incapacitants. 1-chloroacetophenone, 2-chlorobenzylidene malononitrile and dibenz[b,f]1,4-oxazepine. Toxicol Rev 2003; 22: 103–10.
Published May 08, 2019.