bromo-benzyl-cyanide

Powerful lachrymatory (tear) gas introduced by the French as ‘Camite’ July 1918. With an odour of spoiled fruit, BBC produces a burning sensation in the nose and throat, together with a severe headache. It is effective at very low concentrations, and at higher concentrations prolonged exposure could be fatal, though a toxic concentration cannot be reached in practice due to its low volatility.