Pymetrozine is a member of the class of 1,2,4-triazines that is 4,5-dihydro-1,2,4-triazin-3(2H)-one substituted by a methyl group at position 6 and a (pyridin-3-ylmethylidene)amino group at position 4. It has a role as an antifeedant, an environmental contaminant, a xenobiotic and a TRPV channel modulator. It is a member of 1,2,4-triazines and a member of pyridines.