2933            |    Heterocyclic compounds with nitrogen hetero-atom(s) only.
2933.11.00     -- Phenazone (antipyrin) and its derivatives
2933.19.00     -- Other
2933.21.00     -- Hydantoin and its derivatives
2933.29.00     -- Other
2933.31.00     -- Pyridine and its salts
2933.32.00     -- Piperidine and its salts
2933.33.00      -- Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A,, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN) and trimeperidine (INN); salts thereof
2933.39.00     -- Other
2933.41.00     -- Levorphanol (INN) and its salts
2933.49.00     -- Other
2933.52.00     -- Malonylurea (barbituric acid) and its salts
2933.53.00     -- Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), Phenobarbital (INN), secbutabarbital (INN), secobarbital (INN), and vinylbital (INN); salts thereof
2933.54.00     -- Other derivatives of malonylurea (barbituric acid); salts thereof
2933.55.00     -- Loprazolam (INN), mecloqualone (INN), methaqualone (INN)
2933.59.00     -- Other
2933.61.00     -- Melamine
2933.69.00     -- Other
2933.71.00     -- 6-Hexanelactam (epsilon-caprolact-am)
2933.72.00     -- Clobazam (INN) and methyprylon (INN)
2933.79.00     -- Other lactams
2933.91.00      -- Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN), and triazolam (INN); salts thereof
2933.92.00
2933.99.00     -- Other