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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If esterified form like OTS diethylamide for specific solvent applications
Esters of sulfonamides classify with the acid-function compound last in numerical order per note 3(A).
If blended with solvents for safe transport exceeding Chapter 29 note (e) limits
Solvent-dissolved products only qualify under Chapter 29 if solely for safety/transport without specific use adaptation.
If precursor toluenesulfonic acid rather than the amide derivative
Sulfonic acids without nitrogen function classify in earlier Chapter 29 headings.
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Import Tips & Compliance
• Provide assay report confirming sulfonamide content >97% to avoid reclassification as 'other organic compounds' in 2934
• Classify based on principal use documentation; include end-user letters if challenged by CBP
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.
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 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.
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.