Tetra-O-Acetyl-D-Ribose from China
Tetra-O-acetyl-D-ribose is a protected ribose sugar ester with four acetate groups, used as an intermediate in nucleoside analog synthesis for antiviral drugs. It is classified under tariff item 2940.00.00 as a chemically pure sugar ester, not covered by headings 29.37, 29.38, or 29.39. The product meets the Chapter 29 definition of a separate chemically defined organic compound.
Duty Rate — China → Canada
PGA flags (2)Show detailsHide detailsCFIAAll ProgramsRequiredHCActive Pharmaceutical IngredientsMay be required
- CFIA
All Programs · Required
CANADIAN FOOD INSPECTION AGENCY: CFIA All Programs requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Equal To 2940000000).
- 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: Equal To 2940000000. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Import Tips
• Ensure the product is not a nucleoside or nucleotide of heading 29.39, as it is a sugar ester intermediate
• Provide a certificate of analysis to the CBSA to confirm the chemical structure
• Verify that the product is not put up in measured doses for pharmaceutical use, which would shift classification to Chapter 30