Product classification
HS code for Fentanyls: 2933.34
Heterocyclic compounds, containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other fentanyls and their derivatives.
Classification of fentanyls under HS 2933.34
Fentanyls and their derivatives are classified under HS code 2933.34. This classification is part of Chapter 29 (Organic chemicals), specifically under heading 2933, which covers heterocyclic compounds with nitrogen hetero-atom(s) only, containing an unfused pyridine ring (whether or not hydrogenated) in the structure. The subheading 2933.34 was specifically introduced to the Harmonized System to provide a distinct category for fentanyl and its analogues due to their extreme potency and the necessity for rigorous international trade oversight. The chemical structure of fentanyl includes a piperidine ring, which is a hydrogenated version of a pyridine ring, thus placing it within the 2933 hierarchy. This code applies to the bulk chemical substances, their salts, and specific derivatives. The classification is strictly based on the molecular structure of the compound. Because these substances are highly regulated under international law, the HS system uses specific subheadings like 2933.34 to ensure that customs authorities can accurately identify and monitor the movement of these synthetic opioids across borders.
- Covers
- Fentanyl (INN)
- Alfentanil (INN)
- Sufentanil (INN)
- Remifentanil (INN)
- Fentanyl citrate
- Carfentanil
- Fentanyl derivatives and salts
- Also under 2933.34
- Sublimaze (Fentanyl)
- Ultiva (Remifentanil)
- Sufenta (Sufentanil)
- Alfenta (Alfentanil)
Codes often confused with 2933.34
Common mistake. Fentanyls are frequently misclassified under HS code 2933.33, which covers other specific controlled substances like pipradrol and phencyclidine. They may also be incorrectly placed in 3004.90 if they are in the form of transdermal patches or injectable solutions for retail sale. In bulk form, however, 2933.34 is the mandatory code. Another common error is using 2933.39, which is a 'catch-all' for other pyridine derivatives.
Top exporters and importers of HS 293334 (the code used for fentanyls), 2025
In 2025, the largest exporter of HS 293334 (the code used for fentanyls) in UN Comtrade data was India, with 54% of world exports; the largest importer in UN Comtrade data was Algeria, with about 64% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 293334, not only fentanyls.
Top exporters 2025 · share of world exports
- 1 India $1.8M 54% of world exports
- 2 France $1.4M 42% of world exports
- 3 Poland $49K 1.4% of world exports
World total: $3.4M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Algeria* ~$1.4M 64% of world imports · partner records ↗
- 2 Australia $198K 8.9% of world imports
- 3 Lithuania $184K 8.3% of world imports
World total: $2.2M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for fentanyls
Brazil classifies fentanyls under NCM 2933.34.00: HS 2933.34 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about fentanyls
What is the HS code for Fentanyls?
The HS code for Fentanyls is 293334 (Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other fentanyls and their derivatives). The HS code for fentanyls and their derivatives is 2933.34.
How do I classify Fentanyls for customs?
Fentanyls is classified under HS code 293334 — Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other fentanyls and their derivatives. This is a 6-digit subheading level code.
How are fentanyl patches classified?
Fentanyl patches are considered medicaments put up in measured doses and are classified under HS code 3004.90, not 2933.34.
Which countries are the top exporters of fentanyls (HS 293334)?
In 2025, the top exporters of HS 293334 (the code used for fentanyls) in UN Comtrade data were India ($1.8M, 54% of world exports), France ($1.4M) and Poland ($49K). World exports came to about $3.4M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of fentanyls (HS 293334)?
In 2025, the top importers of HS 293334 (the code used for fentanyls) in UN Comtrade data were Algeria (about $1.4M, 64% of world imports), Australia ($198K) and Lithuania ($184K). World imports came to about $2.2M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Fentanyls the same in all countries?
The base HS code 293334 for Fentanyls is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for fentanyls in Brazil?
In Brazil, fentanyls (HS 293334) is classified under NCM 2933.34.00.