HS code · 6-digit subheading

HS Code 2933.41 – Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, levorphanol (INN) and its salts

Q: What is HS code 293341?

HS code 293341 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, levorphanol (INN) and its salts. This HS code specifically covers levorphanol (INN) and its salts, which are heterocyclic compounds containing a quinoline or isoquinoline ring-system. Levorphanol is a potent opioid analgesic, making its international trade highly regulated and restricted. It is primarily imported and exported by licensed pharmaceutical companies for medical use in managing severe pain, particularly in cases where other analgesics are insufficient. Trade is also conducted by specialized research institutions for scientific study, always under strict governmental oversight. Key things to know include its classification as a controlled substance under international drug control conventions, necessitating rigorous licensing, quota systems, and secure handling protocols. Unauthorized trade or diversion carries severe legal penalties due to its high potential for abuse and addiction.

Q: What products fall under HS code 293341?

Levorphanol tartrate, Levorphanol base, Dromoran (brand name), Levorphanol hydrochloride

Q: Which countries are the top exporters of goods under HS code 293341?

In 2025, the top exporters of HS code 293341 in UN Comtrade data were India ($3.7M, 91% of world exports), the United States ($370K) and Costa Rica (about $3K). World exports came to about $4.1M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.

Q: Which countries are the top importers of goods under HS code 293341?

In 2025, the top importers of HS code 293341 in UN Comtrade data were Egypt ($3.1M, 83% of world imports), the United States ($434K) and South Korea ($95K). World imports came to about $3.7M, 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.

Q: How is HS code 293341 structured?

HS code 293341 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 (41) specify the subheading. This code is standardized globally by the World Customs Organization.

Q: What is the Brazil NCM code for HS code 293341?

Brazil splits HS code 293341 into 2 NCM codes: 2933.41.10 (Levorphanol), 2933.41.20 (Levorphanol salts). The first 6 digits of each match the HS code.

HS code 2933.41 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, levorphanol (INN) and its salts. It is used for levorphanol tartrate, levorphanol base, dromoran (brand name) and levorphanol hydrochloride.

What HS 2933.41 covers

This HS code specifically covers levorphanol (INN) and its salts, which are heterocyclic compounds containing a quinoline or isoquinoline ring-system. Levorphanol is a potent opioid analgesic, making its international trade highly regulated and restricted. It is primarily imported and exported by licensed pharmaceutical companies for medical use in managing severe pain, particularly in cases where other analgesics are insufficient. Trade is also conducted by specialized research institutions for scientific study, always under strict governmental oversight. Key things to know include its classification as a controlled substance under international drug control conventions, necessitating rigorous licensing, quota systems, and secure handling protocols. Unauthorized trade or diversion carries severe legal penalties due to its high potential for abuse and addiction.

Covers: Levorphanol tartrate
Levorphanol base
Dromoran (brand name)
Levorphanol hydrochloride
Examples: Dromoran (historical brand)
generic Levorphanol tartrate tablets

Codes often confused with 2933.41

Common mistake. Levorphanol can be confused with other opioid analgesics, such as morphine (HS 2939.11) or codeine (HS 2939.12), if the specific quinoline/isoquinoline ring structure is not accurately identified.

2939.11Alkaloids; of opium and their derivatives; salts thereof

Top exporters and importers of HS code 293341, 2025

In 2025, the largest exporter of HS code 293341 in UN Comtrade data was India, with 91% of world exports; the largest importer in UN Comtrade data was Egypt, with 83% of world imports. Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.

Top exporters 2025 · share of world exports

1 India $3.7M 91% of world exports
2 United States $370K 9.1% of world exports
3 Costa Rica* ~$3K <0.1% of world exports · partner records ↗

Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.

World total: $4.1M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

1 Egypt $3.1M 83% of world imports
2 United States $434K 12% of world imports
3 South Korea $95K 2.6% of world imports

World total: $3.7M 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 codes for 2933.41 2

Brazil splits HS 2933.41 into 2 NCM codes, Mercosur's 8-digit tariff lines.

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.

Access via API

GET /api/hs-code/293341/

{
  "code": "293341",
  "description": "Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, levorphanol (INN) and its salts",
  "section": "VI",
  "parent": "2933"
}

API docs →

Questions about HS 2933.41

What is HS code 293341?

HS code 293341 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, levorphanol (INN) and its salts. This HS code specifically covers levorphanol (INN) and its salts, which are heterocyclic compounds containing a quinoline or isoquinoline ring-system. Levorphanol is a potent opioid analgesic, making its international trade highly regulated and restricted. It is primarily imported and exported by licensed pharmaceutical companies for medical use in managing severe pain, particularly in cases where other analgesics are insufficient. Trade is also conducted by specialized research institutions for scientific study, always under strict governmental oversight. Key things to know include its classification as a controlled substance under international drug control conventions, necessitating rigorous licensing, quota systems, and secure handling protocols. Unauthorized trade or diversion carries severe legal penalties due to its high potential for abuse and addiction.

What products fall under HS code 293341?

Levorphanol tartrate, Levorphanol base, Dromoran (brand name), Levorphanol hydrochloride

What are common misclassifications for HS code 293341?

Levorphanol can be confused with other opioid analgesics, such as morphine (HS 2939.11) or codeine (HS 2939.12), if the specific quinoline/isoquinoline ring structure is not accurately identified.

Which countries are the top exporters of goods under HS code 293341?

In 2025, the top exporters of HS code 293341 in UN Comtrade data were India ($3.7M, 91% of world exports), the United States ($370K) and Costa Rica (about $3K). World exports came to about $4.1M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.

Which countries are the top importers of goods under HS code 293341?

In 2025, the top importers of HS code 293341 in UN Comtrade data were Egypt ($3.1M, 83% of world imports), the United States ($434K) and South Korea ($95K). World imports came to about $3.7M, 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 293341 structured?

HS code 293341 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 (41) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 293341?

Brazil splits HS code 293341 into 2 NCM codes: 2933.41.10 (Levorphanol), 2933.41.20 (Levorphanol salts). The first 6 digits of each match the HS code.