Ortho-Toluenesulfonamide Technical Grade
Technical grade ortho-toluenesulfonamide used as a curing agent in polyurethane and epoxy resin systems, and as intermediate for saccharin production. Covered under the toluenesulfonamide mixtures provision of HTS 2935.90.13.00. Supplied at 97-99% purity for industrial applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as carboxamide derivative
Sulfonamide function takes precedence over carboxamide classification.
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Import Tips & Compliance
• Confirm TSCA listing as 'Toluenesulfonamide, o-' CAS 1333-07-1
• Para-isomer content <2% required for technical grade specification
• Avoid bulk packaging; use fiber drums with PE liner for moisture protection
Related Products under HTS 2935.90.13.00
Halosulfuron Methyl Technical
Halosulfuron methyl (Methyl 5-{[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonylaminosulfonyl}-3-chloro-1-methyl-1H-pyrazole-4-carboxylate) is a sulfonylurea herbicide used for sedge and broadleaf weed control in rice, sugarcane, and turf. This specific sulfonamide is explicitly listed under HTS 2935.90.13.00. Imported as technical material for manufacturing commercial formulations like Permit or Sedgehammer.
Ortho- and Para-Toluenesulfonamide Mixture
Mixture of ortho- and para-toluenesulfonamides (N-Ethyl-o-toluenesulfonamide and N-Ethyl-p-toluenesulfonamide) used as chemical intermediates in dye manufacturing, pharmaceuticals, and polymer production. This specific sulfonamide mixture is explicitly covered under HTS 2935.90.13.00. Typically imported in 25kg drums for industrial chemical processing.
2,4-Dichloro-5-Sulfamoylbenzoic Acid
2,4-Dichloro-5-sulfamoylbenzoic acid serves as a key intermediate in sulfonamide herbicide synthesis and pharmaceutical manufacturing. This compound is explicitly listed under HTS 2935.90.13.00 due to its sulfonamide functional group. Typically imported as technical grade powder for downstream chemical processing.
Fomesafen Sodium Salt
Fomesafen sodium salt is the water-soluble form of the fomesafen herbicide active ingredient, used in liquid herbicide formulations. As a salt of the named sulfonamide compound, it qualifies under HTS 2935.90.13.00 per Chapter 29 salt classification rules. Imported for suspension concentrate and soluble liquid herbicide manufacturing.
Halosulfuron Methyl Reference Standard
High-purity halosulfuron methyl reference standard (≥99.5%) used for analytical method validation, residue analysis, and quality control in pesticide manufacturing. Qualifies under HTS 2935.90.13.00 as the specifically named sulfonamide compound. Packaged in 100mg-1g amber glass vials.
7-(Hexadecylsulfonylamino)-1H-Indole
7-(Hexadecylsulfonylamino)-1H-indole is a specialty sulfonamide used in pharmaceutical intermediate synthesis and organic electronics research. Specifically enumerated in HTS 2935.90.13.00. Long alkyl chain provides lipophilic properties for membrane transport applications.