N-Cyclohexyl-2-benzothiazolesulfenamide (CBS) from Mexico
CBS is a delayed-action vulcanization accelerator containing the benzothiazole ring-system, widely used in tire and rubber manufacturing. Classified under HTS 2934.20.4000 per additional U.S. note 3, as it's a specific heterocyclic compound listed for tariff purposes.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide technical data sheet confirming benzothiazole content and CAS number for customs verification
• Ensure packaging complies with UN regulations for chemical transport (often UN 3077)
• Monitor Section VI note 3 quantities if applicable to avoid over-quota duties