Product classification
HS code for Phenazone: 2933.11
Heterocyclic compounds, with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives.
Classification of phenazone under HS 2933.11
Phenazone, also known as antipyrin, is classified under HS code 2933.11. This classification is determined by its chemical structure as a heterocyclic compound containing an unfused pyrazole ring. Chapter 29 of the Harmonized System covers organic chemicals, and heading 2933 is dedicated to heterocyclic compounds with nitrogen hetero-atom(s) only. Subheading 2933.11 specifically names phenazone and its derivatives. As a pure chemical substance, it is classified here regardless of its intended use in the pharmaceutical industry, provided it has not been mixed with other ingredients or put up in measured doses for retail sale.
- Covers
- Pure phenazone (Antipyrin)
- Phenazone crystals
- Phenazone powder (bulk)
- Phenazone derivatives (e.g., propyphenazone)
- Salts of phenazone
- Also under 2933.11
- Novalgin (Metamizole)
- Saridon (contains Propyphenazone)
- specific generic phenazone products
- research-grade antipyrin
Codes often confused with 2933.11
Common mistake. Phenazone is frequently misclassified under HS code 2933.19, which is the residual category for "other" pyrazole derivatives. However, because phenazone is explicitly named in 2933.11, the more specific code must be used. It is also sometimes confused with HS code 3004.90 if the importer views it as a finished medicine; however, Chapter 29 is for separate chemically defined compounds, whereas Chapter 30 is for prepared medicaments.
Top exporters and importers of HS 293311 (the code used for phenazone), 2025
In 2025, the largest exporter of HS 293311 (the code used for phenazone) in UN Comtrade data was Germany, with 45% of world exports; the largest importer in UN Comtrade data was Brazil, with 45% 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 293311, not only phenazone.
Top exporters 2025 · share of world exports
- 1 Germany $29M 45% of world exports
- 2 China $12M 18% of world exports
- 3 India $10M 16% of world exports
World total: $65M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $79M 45% of world imports
- 2 Spain $17M 9.5% of world imports
- 3 Romania $12M 7.1% of world imports
World total: $175M 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 phenazone
Brazil splits HS 2933.11 into 5 NCM codes. Pick the one that matches your product:
- 2933.11.11Dipyrone (metamizole sodium)
- 2933.11.12Magnopyrol (magnesium dipyrone)
- 2933.11.19Noramidopyrine methanesulphonic acid, other salts
- 2933.11.20Methylene-bis(4-methylaminoantipyrine)
- 2933.11.90Other phenazone (antipyrin) and its derivatives
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about phenazone
What is the HS code for Phenazone?
The HS code for Phenazone is 293311 (Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives). The specific HS code for phenazone (antipyrin) and its derivatives is 2933.11.
How do I classify Phenazone for customs?
Phenazone is classified under HS code 293311 — Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives. This is a 6-digit subheading level code.
Is phenazone classified differently if it is a liquid?
No, the physical state (powder, crystal, or liquid solution) does not change the classification under 2933.11 as long as it remains a separate chemically defined compound.
Which countries are the top exporters of phenazone (HS 293311)?
In 2025, the top exporters of HS 293311 (the code used for phenazone) in UN Comtrade data were Germany ($29M, 45% of world exports), China ($12M) and India ($10M). World exports came to about $65M, 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 phenazone (HS 293311)?
In 2025, the top importers of HS 293311 (the code used for phenazone) in UN Comtrade data were Brazil ($79M, 45% of world imports), Spain ($17M) and Romania ($12M). World imports came to about $175M, 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 Phenazone the same in all countries?
The base HS code 293311 for Phenazone 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 phenazone in Brazil?
Brazil splits HS 293311 into 5 NCM codes, so the right one for phenazone depends on the product's details: 2933.11.11 (Dipyrone (metamizole sodium)), 2933.11.12 (Magnopyrol (magnesium dipyrone)), 2933.11.19 (Noramidopyrine methanesulphonic acid, other salts), 2933.11.20 (Methylene-bis(4-methylaminoantipyrine)), 2933.11.90 (Other phenazone (antipyrin) and its derivatives).