found: Work cat.: NUCMC data from Armed Forces Institute of Pathology for World War I gas identification posters, ca. 1917(chlorpicrin)
found: LC database, May 7, 1998(Chloropicrin)
found: Environmental Health Clearinghouse (NIEHS) WWW Home page, Pesticide fact sheets, May 7, 1998(Chloropicrin; common name: chloropicrin; chemical name: Trichloronitromethane; common product names: Acquinite, Chlor-O-Pic, Larvacide; Pic-Chlor, and Tri-Clor; because of its extreme toxicity and its irritating effects on the eyes, lungs, and mucus membranes was used as a chemical warfare agent during World War I and is now used in making tear gas; fumigant)
found: Extoxnet: Extension Toxicology Network, Pesticide Information Project, WWW Home page, May 7, 1998(Chloropicrin; strong lachrymator; used as an insecticide since 1917 and as a soil fumigant since 1920)