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HS 29.33.21

Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, hydantoin and its derivatives

Classification Hierarchy
SECTIONVI: Products of the chemical or allied industries
CHAPTER29: Organic chemicals
HEADING29.33: Heterocyclic compounds with nitrogen hetero-atom(s) only
CODE29.33.21: Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, hydantoin and its derivatives

This is the international 6-digit HS code. Your country may use additional digits for national tariff purposes. For UK tariff and duty rates, check the UK Trade Tariff. For US rates, check the USITC HTS.

Related Codes Under 29.33

29.33.11
Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives
29.33.19
Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, other than henazone (antipyrin) and its derivatives
29.33.29
Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, other than hydantoin and its derivatives
29.33.31
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, pyridine and its salts
29.33.32
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, piperidine and its salts
29.33.33
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN)
29.33.34
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other fentanyls and their derivatives
29.33.35
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 3-quinuclidinol
29.33.36
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 4-anilino-N-phenethylpiperidine (ANPP)
29.33.37
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, N-phenethyl-4-piperdone (NPP)
29.33.39
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, n.e.c. in 2933.3
29.33.41
Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, levorphanol (INN) and its salts
29.33.49
Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, other than levorphanol (INN) and its salts
29.33.52
Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, malonylurea (barbituric acid) and its salts
29.33.53
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
29.33.54
Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, other derivatives of malonylurea (barbituric acid) and salts thereof, n.e.c. in 2933.53
29.33.55
Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure; loprazolam (INN), mecloqualone (INN), methaqualone (INN), and zipeprol (INN); salts thereof
29.33.59
Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, (other than malonylurea and its derivatives, loprazolam, mecloqualone, methaqualone, zipeprol, and salts thereof) n.e.c. in 2933.5
29.33.61
Heterocyclic compounds; containing an unfused triazine ring (whether or not hydrogenated) in the structure, melamine
29.33.69
Heterocyclic compounds; containing an unfused triazine ring (whether or not hydrogenated) in the structure, others excluding melamine
29.33.71
Heterocyclic compounds; lactams; 6-hexanelactam (epsilon-caprolactam)
29.33.72
Heterocyclic compounds; lactams; clobazam (INN) and methyprylon (INN)
29.33.79
Heterocyclic compounds; lactams; other than 6-hexanelactam (epsilon caprolactam) and clobazam (INN) and methyprylon (INN)
29.33.91
Heterocyclic compounds; alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), (cont)
29.33.92
Heterocyclic compounds; azinphos-methyl (ISO)
29.33.99
Heterocyclic compounds; n.e.c. in headings no. 2933
← Heading 29.33: Heterocyclic compounds with nitrogen hetero-atom(s) only