4,4'-Di-tert-Butyldiphenylamine from Mexico
4,4'-Di-tert-butyldiphenylamine is a symmetrical diphenylamine derivative with tert-butyl groups at the 4 and 4' positions, used as a high-temperature antioxidant in synthetic rubber and plastics. It falls under tariff item 2921.44.00 as a derivative of diphenylamine, which covers substituted diphenylamine compounds.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm the product is a single chemically defined compound, as mixtures may be classified elsewhere
• Keep a safety data sheet (SDS) for the product, as it may be required by CBSA
• Check if the product is subject to any Canadian restrictions on antioxidants in food-contact materials