CA, BBC, 4-Bromophenylacetylnitrile
Brombenzyl cyanide (CA) is a yellow white crystalline solid that melts at 25 degrees C (77 degrees F) into a brownish oily liquid. It is a powerful lachrymatory agent at low concentrations. Its toxicity is low, less than phosgene.
Old Chemical Weapons and Related Materiel Reference Guide (2018)
Old Chemical Weapons Reference Guide (1998)
TM 9-1904, Ammunition Inspection Guide (1944)