Bromobenzyl cyanide (BBC), also known in the military idiom as camite (CA), is an obsolete lachrymatory agent[1] introduced in World War I by the Allied Powers, being a standard agent, along with chloroacetophenone, adopted by the CWS.[2] When implemented in World War I, it revolutionized the use of tear agents due to their extreme potency. BBC is toxic like chlorine gas.[3]
^Davies, W; MacLaren, J. A (1951). "330. The reaction of α-bromobenzyl cyanide with ethyl xanthamidate (thioncarbamate)". J. Chem. Soc.: 1434–1437. doi:10.1039/JR9510001434.