HS code · 6-digit subheading
HS Code 2933.35 – Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 3-quinuclidinol
HS code 2933.35 is the 6-digit subheading for heterocyclic compounds, containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 3-quinuclidinol. It is used for 3-Quinuclidinol hydrochloride, 3-Quinuclidinol base, (R)-3-Quinuclidinol, (S)-3-Quinuclidinol and 3-Quinuclidinol tartrate.
What HS 2933.35 covers
This HS code specifically covers 3-quinuclidinol, a heterocyclic compound containing an unfused pyridine ring. In international trade, 3-quinuclidinol is primarily traded as a chemical intermediate, not as a finished pharmaceutical product. It serves as a crucial building block in the synthesis of various pharmaceuticals, particularly anticholinergic drugs, and can also be a precursor in the production of certain chemical warfare agents, which makes its trade subject to scrutiny. Importers are typically specialty chemical manufacturers and pharmaceutical companies engaged in research and development or drug synthesis. Exporters are often chemical producers in regions with strong chemical industries. Key things to know include its dual-use potential, meaning it has legitimate industrial applications but can also be diverted for illicit purposes, leading to export controls and monitoring in many jurisdictions.
- Covers
- 3-Quinuclidinol hydrochloride
- 3-Quinuclidinol base
- (R)-3-Quinuclidinol
- (S)-3-Quinuclidinol
- 3-Quinuclidinol tartrate
- Examples
- Sigma-Aldrich 3-Quinuclidinol
- TCI America 3-Quinuclidinol
- Acros Organics 3-Quinuclidinol
Codes often confused with 2933.35
Common mistake. This compound might be confused with other pyridine-containing intermediates under HS 2933.39 if its specific structure is not recognized, or with other alcohol-functionalized heterocyclic compounds.
Top exporters and importers of HS code 293335, 2025
In 2025, the largest exporter of HS code 293335 in UN Comtrade data was France, with 42% of world exports; the largest importer in UN Comtrade data was Italy, with 50% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 France $337K 42% of world exports
- 2 Germany $326K 41% of world exports
- 3 Latvia $109K 14% of world exports
World total: $800K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Italy $327K 50% of world imports
- 2 United States $125K 19% of world imports
- 3 Spain $57K 8.7% of world imports
World total: $656K 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 that did not report are estimated from what other countries recorded trading with them. 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 2933.35
Brazil does not split HS 2933.35: its NCM code is 2933.35.00.
All Brazil NCM codes in heading 29.33 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2933.35
What is HS code 293335?
HS code 293335 is a 6-digit subheading in the Harmonized System that covers: Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 3-quinuclidinol. This HS code specifically covers 3-quinuclidinol, a heterocyclic compound containing an unfused pyridine ring. In international trade, 3-quinuclidinol is primarily traded as a chemical intermediate, not as a finished pharmaceutical product. It serves as a crucial building block in the synthesis of various pharmaceuticals, particularly anticholinergic drugs, and can also be a precursor in the production of certain chemical warfare agents, which makes its trade subject to scrutiny. Importers are typically specialty chemical manufacturers and pharmaceutical companies engaged in research and development or drug synthesis. Exporters are often chemical producers in regions with strong chemical industries. Key things to know include its dual-use potential, meaning it has legitimate industrial applications but can also be diverted for illicit purposes, leading to export controls and monitoring in many jurisdictions.
What products fall under HS code 293335?
3-Quinuclidinol hydrochloride, 3-Quinuclidinol base, (R)-3-Quinuclidinol, (S)-3-Quinuclidinol, 3-Quinuclidinol tartrate
What are common misclassifications for HS code 293335?
This compound might be confused with other pyridine-containing intermediates under HS 2933.39 if its specific structure is not recognized, or with other alcohol-functionalized heterocyclic compounds.
Which countries are the top exporters of goods under HS code 293335?
In 2025, the top exporters of HS code 293335 in UN Comtrade data were France ($337K, 42% of world exports), Germany ($326K) and Latvia ($109K). World exports came to about $800K, 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 goods under HS code 293335?
In 2025, the top importers of HS code 293335 in UN Comtrade data were Italy ($327K, 50% of world imports), the United States ($125K) and Spain ($57K). World imports came to about $656K, 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.
How is HS code 293335 structured?
HS code 293335 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (33) identify the heading, and digits 5-6 (35) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293335?
In Brazil, HS code 293335 is NCM 2933.35.00. The last two digits are 00 because Brazil does not split this HS code further.