Teriflunomide is the principal active metabolite of leflunomide?an approved therapy for rheumatoid arthritis and?multiple sclerosis.

Argentinogenin is a natural compound with anti-cancer activity that could be found in traditional Chinese agent Chan Su.

Diallyl phthalate (NSC 7667) is a widely used cross-linking agent for unsaturated polyesters and can cause fetal toxicity at certain concentrations.