HS code · 6-digit subheading
HS Code 2933.49 – 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
HS code 2933.49 is the 6-digit subheading for 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. It is used for chloroquine, quinine, mefloquine, primaquine and quinoline.
What HS 2933.49 covers
This HS code encompasses "other" heterocyclic compounds containing a quinoline or isoquinoline ring-system, excluding levorphanol and its salts. This category is broad, covering a variety of chemical compounds that serve as active pharmaceutical ingredients (APIs), intermediates for drug synthesis, or specialty chemicals for other industrial applications. Importers and exporters include pharmaceutical manufacturers, fine chemical producers, and research laboratories globally. Key things to know are the diverse applications of these compounds, ranging from antimalarials and anti-infectives to dyes and photographic chemicals. While not as strictly controlled as levorphanol, some compounds within this category may still be subject to specific national regulations due to their pharmacological activity or precursor potential. Accurate chemical identification is essential to ensure proper classification and compliance with any relevant trade restrictions.
- Covers
- Chloroquine
- Quinine
- Mefloquine
- Primaquine
- Quinoline
- Isoquinoline
- 8-Hydroxyquinoline
- Ciprofloxacin
- Examples
- Aralen (Chloroquine)
- Lariam (Mefloquine)
- Quinine Sulfate tablets
- Cipro (Ciprofloxacin)
Codes often confused with 2933.49
Common mistake. This "other" category is often confused with more specific quinoline/isoquinoline derivatives if their exact chemical name is known, potentially leading to misclassification instead of a more precise HS code within Chapter 29.
Top exporters and importers of HS code 293349, 2025
In 2025, the largest exporter of HS code 293349 in UN Comtrade data was China, with 26% of world exports; the largest importer in UN Comtrade data was the United Kingdom, with 28% 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 China $254M 26% of world exports
- 2 Switzerland $192M 20% of world exports
- 3 India $168M 17% of world exports
World total: $981M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United Kingdom $383M 28% of world imports
- 2 Germany $165M 12% of world imports
- 3 United States $101M 7.5% of world imports
World total: $1.3B 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 codes for 2933.49 8
Brazil splits HS 2933.49 into 8 NCM codes, Mercosur's 8-digit tariff lines.
- 2933.49.1 Derivatives of quinolinecarboxylic acidDerivados do ácido quinolinocarboxílico Group
- 2933.49.11 2,3-Quinolinedicarboxylic acidÁcido 2,3-quinolinodicarboxílico
- 2933.49.12 RosoxacinRosoxacina
- 2933.49.13 ImazaquinImazaquin
- 2933.49.19 Other quinolinecarboxylic acid derivativesOutros
- 2933.49.20 OxamniquineOxaminiquina
- 2933.49.30 BroxyquinolineBroxiquinolina
- 2933.49.40 Esters of levorphanolÉsteres do levorfanol
- 2933.49.90 Other quinoline or isoquinoline compoundsOutros
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 2933.49
What is HS code 293349?
HS code 293349 is a 6-digit subheading in the Harmonized System that covers: 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. This HS code encompasses "other" heterocyclic compounds containing a quinoline or isoquinoline ring-system, excluding levorphanol and its salts. This category is broad, covering a variety of chemical compounds that serve as active pharmaceutical ingredients (APIs), intermediates for drug synthesis, or specialty chemicals for other industrial applications. Importers and exporters include pharmaceutical manufacturers, fine chemical producers, and research laboratories globally. Key things to know are the diverse applications of these compounds, ranging from antimalarials and anti-infectives to dyes and photographic chemicals. While not as strictly controlled as levorphanol, some compounds within this category may still be subject to specific national regulations due to their pharmacological activity or precursor potential. Accurate chemical identification is essential to ensure proper classification and compliance with any relevant trade restrictions.
What products fall under HS code 293349?
Chloroquine, Quinine, Mefloquine, Primaquine, Quinoline, Isoquinoline, 8-Hydroxyquinoline, Ciprofloxacin
What are common misclassifications for HS code 293349?
This "other" category is often confused with more specific quinoline/isoquinoline derivatives if their exact chemical name is known, potentially leading to misclassification instead of a more precise HS code within Chapter 29.
Which countries are the top exporters of goods under HS code 293349?
In 2025, the top exporters of HS code 293349 in UN Comtrade data were China ($254M, 26% of world exports), Switzerland ($192M) and India ($168M). World exports came to about $981M, 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 293349?
In 2025, the top importers of HS code 293349 in UN Comtrade data were the United Kingdom ($383M, 28% of world imports), Germany ($165M) and the United States ($101M). World imports came to about $1.3B, 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 293349 structured?
HS code 293349 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 (49) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293349?
Brazil splits HS code 293349 into 8 NCM codes: 2933.49.11 (2,3-Quinolinedicarboxylic acid), 2933.49.12 (Rosoxacin), 2933.49.13 (Imazaquin), 2933.49.19 (Other quinolinecarboxylic acid derivatives), 2933.49.20 (Oxamniquine), 2933.49.30 (Broxyquinoline), 2933.49.40 (Esters of levorphanol), 2933.49.90 (Other quinoline or isoquinoline compounds). The first 6 digits of each match the HS code.