Heterocyclic compounds with nitrogen hetero-atom[s] only, containing an unfused triazine ring, whether or not hydrogenated, in the structure (excl. melamine, atrazine "ISO", propazine "ISO", simazine "ISO", hexahydro-1,3,5-trinitro-1,3,5-triazine "hexogen, trimethylenetrinitramine", methenamine [INN] "hexamethylenetetramine" and 2,6-di-tert-butyl-4-[4,6-bis"octylthio"-1,3,5-triazine-2-ylamino]phenol)
