Diethazine Hydrochloride
Diethazine hydrochloride is an older phenothiazine derivative with anticholinergic properties, used to treat extrapyramidal symptoms. It contains the phenothiazine ring-system without further fusion, qualifying for classification under tariff item 2934.30.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the ring-system is not a phenothiazine structure
Residual heading for other heterocyclic compounds.
If imported as finished dosage forms
Retail-packaged medicaments fall under Chapter 30.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product is a separate chemically defined compound and not a mixture
• Have the certificate of analysis and safety data sheet available for customs review
• Check if a controlled substance permit is needed if the product has regulatory restrictions
Related Products under Tariff item 2934.30.00
2-(Trifluoromethyl)phenothiazine
2-(Trifluoromethyl)phenothiazine is a chemically defined heterocyclic compound featuring a phenothiazine ring-system with a trifluoromethyl substituent at the 2-position. It is not further fused and contains no additional ring structures, meeting the tariff item's description.
2-(Trifluoromethyl)phenothiazine Pharmaceutical Intermediate
This high-purity 2-(trifluoromethyl)phenothiazine is manufactured as a key building block for antipsychotic drug synthesis. Its precise chemical structure, featuring a phenothiazine ring-system without further fusion, aligns with tariff item 2934.30.00.
Chlorpromazine Base
Chlorpromazine base is a foundational phenothiazine antipsychotic medication used to treat schizophrenia and severe nausea. Its molecular structure contains a phenothiazine ring-system that is not further fused, which is the defining characteristic of tariff item 2934.30.00. As a separate chemically defined organic compound, it qualifies for classification under this heading.
Chlorpromazine Hydrochloride
Chlorpromazine hydrochloride is a phenothiazine derivative used as an antipsychotic for treating schizophrenia and severe agitation. It contains a phenothiazine ring-system that is not further fused, meeting tariff item 2934.30.00.
Ethopropazine Hydrochloride
Ethopropazine hydrochloride is a phenothiazine anticholinergic used to relieve symptoms of Parkinson's disease. Its structure features a phenothiazine ring-system that is not further fused, making it classifiable under tariff item 2934.30.00.
Ethyl (1H-Phenothiazin-2,4,1)carbamate
Ethyl (1H-phenothiazin-2,4,1)carbamate is a chemically defined heterocyclic compound containing a phenothiazine ring-system with an ethyl carbamate substituent. The ring-system is not further fused, meeting the tariff item's requirements.