Product classification
HS code for Loprazolam: 2933.55
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.
Classification of loprazolam under HS 2933.55
Loprazolam is classified under HS code 2933.55 as a specific heterocyclic compound. Chapter 29 of the Harmonized System deals with organic chemicals. Heading 2933 covers heterocyclic compounds with nitrogen hetero-atom(s) only. Within this heading, the chemical structure of the molecule determines the subheading. Loprazolam contains a pyrimidine ring (which may be hydrogenated) or a piperazine ring in its structure. Subheading 2933.55 is a specific provision for several International Nonproprietary Name (INN) substances, including loprazolam, mecloqualone, methaqualone, and zipeprol, as well as their salts. Classification here is strictly based on the chemical structure and the specific naming of the substance in the HS nomenclature. This follows General Interpretative Rule 1, as the subheading text explicitly names the substance. It is important to note that this code applies to the pure chemical substance or its salts. If the substance is prepared as a medicament in measured doses or in forms for retail sale, the classification would shift to Chapter 30. However, as a bulk raw chemical, 2933.55 is the mandatory classification for Loprazolam.
- Covers
- Loprazolam (INN)
- Loprazolam mesylate (salt)
- Loprazolam hydrochloride (salt)
- Other salts of Loprazolam
- Bulk Loprazolam powder for pharmaceutical manufacturing
- Also under 2933.55
- Dormonoct (Loprazolam)
- Quaalude (Methaqualone - historical)
- Mequelon (Methaqualone - historical)
- Zipeprol cough syrup (historical)
Codes often confused with 2933.55
Common mistake. Loprazolam is often misclassified under 3004.90 if it is in the form of finished tablets, as Chapter 30 takes precedence for medicaments. Another error is using 2933.91, which covers other benzodiazepines like diazepam, chlordiazepoxide, or oxazepam. While Loprazolam is a benzodiazepine derivative, the presence of the pyrimidine/piperazine ring structure and its explicit mention in 2933.55 requires it to be classified there instead of the general benzodiazepine subheading.
Top exporters and importers of HS 293355 (the code used for loprazolam), 2025
In 2025, the largest exporter of HS 293355 (the code used for loprazolam) in UN Comtrade data was France, with 97% of world exports; the largest importer in UN Comtrade data was Colombia, with 24% 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 293355, not only loprazolam.
Top exporters 2025 · share of world exports
- 1 France $800K 97% of world exports
- 2 Malaysia $7K 0.8% of world exports
- 3 Germany $5K 0.6% of world exports
World total: $821K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Colombia $383K 24% of world imports
- 2 Italy $354K 22% of world imports
- 3 Poland $326K 21% of world imports
World total: $1.6M 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 loprazolam
Brazil splits HS 2933.55 into 4 NCM codes. Pick the one that matches your product:
- 2933.55.10Loprazolam and its salts
- 2933.55.20Mecloqualone and its salts
- 2933.55.30Methaqualone and its salts
- 2933.55.40Zipeprol and its salts
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about loprazolam
What is the HS code for Loprazolam?
The HS code for Loprazolam is 293355 (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). The HS code for the chemical substance Loprazolam and its salts is 2933.55.
How do I classify Loprazolam for customs?
Loprazolam is classified under HS code 293355 — 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. This is a 6-digit subheading level code.
Does this code change if it is a salt of Loprazolam?
No, HS code 2933.55 specifically includes both the named substances (like Loprazolam) and their salts.
Which countries are the top exporters of loprazolam (HS 293355)?
In 2025, the top exporters of HS 293355 (the code used for loprazolam) in UN Comtrade data were France ($800K, 97% of world exports), Malaysia ($7K) and Germany ($5K). World exports came to about $821K, 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 loprazolam (HS 293355)?
In 2025, the top importers of HS 293355 (the code used for loprazolam) in UN Comtrade data were Colombia ($383K, 24% of world imports), Italy ($354K) and Poland ($326K). World imports came to about $1.6M, 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 Loprazolam the same in all countries?
The base HS code 293355 for Loprazolam 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 loprazolam in Brazil?
Brazil splits HS 293355 into 4 NCM codes, so the right one for loprazolam depends on the product's details: 2933.55.10 (Loprazolam and its salts), 2933.55.20 (Mecloqualone and its salts), 2933.55.30 (Methaqualone and its salts), 2933.55.40 (Zipeprol and its salts).