Tolpropamine Hydrochloride
Tolpropamine hydrochloride is an antihistamine containing an aromatic amine functionality, used for allergy relief. Its diphenylmethylamine structure classifies it under tariff item 2921.49.00 as an aromatic monoamine derivative. The hydrochloride salt is imported in bulk for pharmaceutical manufacturing.
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 |
PGA flags (2)Show detailsHide detailsHCActive Pharmaceutical IngredientsMay be requiredHCOffice of Controlled substancesMay be required
- HC
Active Pharmaceutical Ingredients · May be required
May require HC Active Pharmaceutical Ingredients depending on intended use (HC13) and Canadian product category (HC01). Matching criteria: Starts With 2921. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
- HC
Office of Controlled substances · May be required
May require HC Office of Controlled substances depending on intended use (HC01, HC02, HC10) and Canadian product category (HC19, HC20, HC22); or intended use (HC05, HC15, HC28) and Canadian product category (HC19, HC20, HC21, HC22). Matching criteria: Starts With 292149; Starts With 292149. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported in finished antihistamine products
Dosage forms are classified in Chapter 30.
If the compound contains a heterocyclic ring
Heterocyclic compounds with nitrogen atoms are classified in heading 29.33.
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
• Ensure the product is not in syrup or tablet form, as that would change classification to Chapter 30
• Provide a valid Drug Establishment Licence if importing for commercial pharmaceutical use
• Keep records of the synthesis process to confirm the aromatic amine classification
Related Products under Tariff item 2921.49.00
2,3-Xylidine
2,3-Xylidine (2,3-dimethylaniline) is a chemically defined aromatic monoamine with two methyl groups on the benzene ring. It is used as an intermediate in the synthesis of azo dyes, pharmaceuticals, and UV stabilizers. This product falls under tariff item 2921.49.00 as an "other" aromatic monoamine derivative.
2,4,6-Trimethylaniline (Mesidine)
2,4,6-Trimethylaniline (mesidine) is a sterically hindered aromatic monoamine with three methyl substituents. It is used in the synthesis of pharmaceuticals, pesticides, and polymer additives. As a chemically defined aromatic monoamine, it is classified under tariff item 2921.49.00.
2,4-Diaminotoluene
2,4-Diaminotoluene is an aromatic diamine used in polyurethane production and hair dyes. Its structure contains two amine groups on a toluene ring, classifying it under tariff item 2921.49.00. The product is imported in bulk for industrial chemical applications.
2,4-Xylidine
2,4-Xylidine (2,4-dimethylaniline) is a pure aromatic monoamine used in herbicide synthesis, dye manufacturing, and rubber antioxidants. It is a separate chemically defined compound, meeting the criteria of Chapter 29 Note 1(a). This product is classified under tariff item 2921.49.00.
2,5-Xylidine
2,5-Xylidine (2,5-dimethylaniline) is an aromatic monoamine with methyl groups at the 2 and 5 positions. It is an intermediate for direct dyes, pharmaceuticals, and photographic chemicals. This chemically defined compound falls under tariff item 2921.49.00.
3,4-Xylidine
3,4-Xylidine (3,4-dimethylaniline) is an aromatic monoamine used as an intermediate for antioxidants, dyes, and agrochemicals. It is a separate chemically defined compound, classified under tariff item 2921.49.00 as an "other" aromatic monoamine derivative.