Heterocyclic compounds with nitrogen hetero-atom"s" only (excl. compounds containing an unfused pyrazole, imidazole, pyridine or triazine ring, whether or not hydrogenated, a quinoline or isoquinoline ring-system, whether or not hydrogenated, not further fused, or a piperazine ring, whether or not hydrogenated, in the structure, lactams, benzimidazole-2-thiol "mercaptobenzimidazole", indole, 3-methylindole "skatole", 6-allyl-6,7-dihydro-5H-dibenz"c,e"azepine "azapetine", chlorodiazepoxide (INN), phenindamine (INN) and their salts, imipramine hydrochloride "INNM", monoazepines, diazepines and 2,4-di-tert-butyl-6-"5-chlorobenzotriazol-2-yl"phenol)

Non coperto dal regolamento. Nessuna corrispondenza di ambito nell'allegato I per questo codice NC indicizzato.