HS code · 6-digit subheading
HS Code 2934.30 – Heterocyclic compounds; containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused
HS code 2934.30 is the 6-digit subheading for heterocyclic compounds, containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused. It is used for phenothiazine, chlorpromazine, promethazine, thioridazine and prochlorperazine.
What HS 2934.30 covers
Phenothiazine compounds are a vital class of heterocyclic chemicals, predominantly known for their extensive use in pharmaceuticals, particularly as antipsychotics, antihistamines, and antiemetics. Their distinctive three-ring structure, containing sulfur and nitrogen, allows for a wide range of pharmacological activities. Major importers are pharmaceutical manufacturing hubs like India, China, the United States, and European countries, where these compounds are synthesized into finished drug products. Exporters include specialized fine chemical manufacturers, often located in regions with advanced chemical synthesis capabilities. Key considerations in their trade involve strict regulatory compliance for pharmaceutical-grade materials, intellectual property rights for patented derivatives, and the need for secure handling due to their potent biological effects. The market is heavily influenced by global healthcare demands, psychiatric medicine advancements, and the development of new therapeutic applications leveraging the phenothiazine scaffold.
- Covers
- Phenothiazine
- Chlorpromazine
- Promethazine
- Thioridazine
- Prochlorperazine
- Fluphenazine
- Trifluoperazine
- Examples
- Thorazine (Chlorpromazine)
- Phenergan (Promethazine)
- Mellaril (Thioridazine)
- Compazine (Prochlorperazine)
Codes often confused with 2934.30
Common mistake. Misclassification might occur with other nitrogen and sulfur-containing heterocycles under 2934.99 if the specific phenothiazine ring system is not explicitly identified, or with 2933 for other nitrogen heterocycles without sulfur.
Top exporters and importers of HS code 293430, 2025
In 2025, the largest exporter of HS code 293430 in UN Comtrade data was China, with 22% of world exports; the largest importer in UN Comtrade data was Brazil, with 15% 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 $23M 22% of world exports
- 2 France $20M 20% of world exports
- 3 Germany $17M 17% of world exports
World total: $104M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $17M 15% of world imports
- 2 France $16M 14% of world imports
- 3 United States $13M 12% of world imports
World total: $114M 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 2934.30 4
Brazil splits HS 2934.30 into 4 NCM codes, Mercosur's 8-digit tariff lines.
- 2934.30.10 Levomepromazine (methotrimeprazine) maleateMaleato de metotrimeprazina (maleato de levomepromazina)
- 2934.30.20 Fluphenazine enanthateEnantato de flufenazina
- 2934.30.30 PromethazinePrometazina
- 2934.30.90 Other phenothiazine ring compoundsOutros
All Brazil NCM codes in heading 29.34 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2934.30
What is HS code 293430?
HS code 293430 is a 6-digit subheading in the Harmonized System that covers: Heterocyclic compounds; containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused. Phenothiazine compounds are a vital class of heterocyclic chemicals, predominantly known for their extensive use in pharmaceuticals, particularly as antipsychotics, antihistamines, and antiemetics. Their distinctive three-ring structure, containing sulfur and nitrogen, allows for a wide range of pharmacological activities. Major importers are pharmaceutical manufacturing hubs like India, China, the United States, and European countries, where these compounds are synthesized into finished drug products. Exporters include specialized fine chemical manufacturers, often located in regions with advanced chemical synthesis capabilities. Key considerations in their trade involve strict regulatory compliance for pharmaceutical-grade materials, intellectual property rights for patented derivatives, and the need for secure handling due to their potent biological effects. The market is heavily influenced by global healthcare demands, psychiatric medicine advancements, and the development of new therapeutic applications leveraging the phenothiazine scaffold.
What products fall under HS code 293430?
Phenothiazine, Chlorpromazine, Promethazine, Thioridazine, Prochlorperazine, Fluphenazine, Trifluoperazine
What are common misclassifications for HS code 293430?
Misclassification might occur with other nitrogen and sulfur-containing heterocycles under 2934.99 if the specific phenothiazine ring system is not explicitly identified, or with 2933 for other nitrogen heterocycles without sulfur.
Which countries are the top exporters of goods under HS code 293430?
In 2025, the top exporters of HS code 293430 in UN Comtrade data were China ($23M, 22% of world exports), France ($20M) and Germany ($17M). World exports came to about $104M, 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 293430?
In 2025, the top importers of HS code 293430 in UN Comtrade data were Brazil ($17M, 15% of world imports), France ($16M) and the United States ($13M). World imports came to about $114M, 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 293430 structured?
HS code 293430 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (34) identify the heading, and digits 5-6 (30) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293430?
Brazil splits HS code 293430 into 4 NCM codes: 2934.30.10 (Levomepromazine (methotrimeprazine) maleate), 2934.30.20 (Fluphenazine enanthate), 2934.30.30 (Promethazine), 2934.30.90 (Other phenothiazine ring compounds). The first 6 digits of each match the HS code.