2934.20.05.00/N-tert-Butyl-2-benzothiazolesulfenamide (TBBS)/Canada

N-tert-Butyl-2-benzothiazolesulfenamide (TBBS) from Canada

N-tert-Butyl-2-benzothiazolesulfenamide (TBBS) is a specific sulfenamide accelerator containing a benzothiazole ring-system, classified under HTS 2934.20.0500 as a heterocyclic compound not further fused. It is primarily used in the rubber industry to control vulcanization speed and improve processed rubber properties.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Provide chemical analysis certificates confirming TBBS purity (>97%) and benzothiazole structure to avoid misclassification as mixtures under Chapter 38

• Ensure packaging complies with UN regulations for hazardous materials (toxic dust risk) with proper labeling for industrial chemical import

• Verify REACH compliance for EU markets and TSCA registration for US; common pitfall is missing safety data sheets leading to customs delays