Dibenzothiophene from United States
Dibenzothiophene is a tricyclic aromatic compound with a sulphur heterocycle fused between two benzene rings. It is a common pollutant found in petroleum fractions and is studied for desulphurization processes. As a separate chemically defined organo-sulphur compound with sulphur directly linked to aromatic carbons, it falls under heading 29.30 and tariff item 2930.90.00.
Duty Rate — United States → Canada
PGA flags (1)Show detailsHide detailsHCActive Pharmaceutical IngredientsMay 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 2930. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Import Tips
• Although dibenzothiophene contains a heterocyclic ring, Chapter 29 Note 7 excludes only specific ring structures; this compound remains in heading 29.30
• Provide the melting point and purity certificate for customs clearance
• Check if the product requires environmental permits due to its classification as a pollutant