o-Toluenesulfonamide with Stabilizer Additive
o-Toluenesulfonamide containing <0.5% anticaking stabilizer for safe bulk handling in resin manufacturing. Qualifies under HTS 2935.90.1500 per Chapter 29 note (f) as the stabilizer is necessary for preservation/transport without rendering it specific-use. Common in synthetic rubber accelerators.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If accelerator preparation for rubber with >10% active content
Rubber chemical preparations classify in heading 3812, not pure compounds.
If organo-sulfur without the defining sulfonamide nitrogen function
Heading 2930 precedes 2935; compounds without nitrogen classify earlier.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document stabilizer composition (<1%) and purpose to satisfy Chapter note (f) requirements
• Use NA1993 proper shipping name for non-hazardous chemical classification
Related Products under HTS 2935.90.15.00
o-Toluenesulfonamide (OTS)
o-Toluenesulfonamide is a chemically defined organic sulfonamide compound with the formula C7H9NO2S, featuring a sulfonamide group (-SO2NH2) attached to an o-tolyl ring. It falls under HTS 2935.90.1500 as a specific sulfonamide classified within Chapter 29 for separate chemically defined organic compounds. Primarily used as an intermediate in organic synthesis and plasticizers.
Technical Grade o-Toluenesulfonamide 98%
Technical grade o-Toluenesulfonamide at 98% purity, containing minor isomers as impurities, used in industrial plasticizer production for PVC flooring. Classified under HTS 2935.90.1500 as it remains a separate chemically defined sulfonamide per Chapter 29 note (a), despite minor impurities. Key intermediate for synthetic resins and coatings.
Pharmaceutical Grade o-Toluenesulfonamide USP
Ultra-pure o-Toluenesulfonamide meeting USP standards for pharmaceutical intermediate synthesis, particularly in sulfonamide antibiotic production. Falls under HTS 2935.90.1500 as a chemically defined sulfonamide of Chapter 29, not excluded under note 2(e) for immunological products. Used in APIs before final formulation.
o-Toluenesulfonamide Flake Form 99.5%
High-purity o-Toluenesulfonamide in flake physical form for easier dissolution in coating formulations. Classified HTS 2935.90.1500 as the flaked state doesn't change its chemical identity as a sulfonamide under Chapter 29. Used in industrial paints and varnishes.