1. During World War I, increasingly toxic lachrymatory agents were used. 2. It has a lachrymatory effect, like related compounds. 3. Lachrymatory agents are commonly used for riot control.4. :Allyl isothiocyanate is a potent lachrymatory agent. 5. This colorless liquid is a lachrymatory agent. 6. Certain lachrymatory agents are often used by police to force compliance, most notably tear gas. 7. Sure enough, the researchers then isolated another enzyme, which they named lachrymatory -factor synthase. 8. The best known such application of smoke compositions is in riot control, for dispersion of lachrymatory agents. 9. "' Crotonaldehyde "'is a chemical compound with the lachrymatory liquid is moderately soluble in water and miscible in organic solvents. 10. In addition to use as spices and food vegetables, " Capsicum " species have also been used as medicines and lachrymatory agents.