Products described in additional U.S. note 3 to section VI
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Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2935.90.75.00
Sulfamethoxazole USP
Sulfamethoxazole is a synthetic bacteriostatic sulfonamide antibiotic used primarily in combination with trimethoprim for treating urinary tract infections and respiratory infections. It falls under HTS 2935.90.75.00 as a sulfonamide compound described in additional U.S. note 3 to section VI, which covers specific organic compounds in this category. This pure chemical form is imported for pharmaceutical manufacturing.
Sulfadiazine Sodium
Sulfadiazine sodium is the sodium salt of a sulfonamide antibiotic used to treat toxoplasmosis and certain bacterial infections, often in veterinary and human medicine. Classified under HTS 2935.90.75.00 per additional U.S. note 3 to section VI for specific sulfonamides. It's imported as a bulk active ingredient for compounding.
Sulfisoxazole
Sulfisoxazole is a short-acting sulfonamide antibiotic effective against urinary tract infections and chlamydia, available as a bulk powder for pharmaceutical formulation. It qualifies for HTS 2935.90.75.00 as a product listed in additional U.S. note 3 to section VI. This chemical is a separate, chemically defined organic sulfonamide compound.
Sulfapyridine
Sulfapyridine is a sulfonamide used historically for dermatitis herpetiformis and as an intermediate in sulfasalazine synthesis. It is covered under HTS 2935.90.75.00 due to its inclusion in additional U.S. note 3 to section VI for specific sulfonamides. Imported as a pure organic compound for medicinal applications.
Sulfathiazole
Sulfathiazole is a sulfonamide bacteriostatic agent used in topical ointments and veterinary medicine. This product is described in additional U.S. note 3 to section VI, placing it in HTS 2935.90.75.00 as a specific sulfonamide. It's supplied as a fine chemical powder for further processing.
Sulfanilamide
Sulfanilamide is the foundational sulfonamide antibiotic, used in vaginal creams and as a diagnostic agent. Classified in HTS 2935.90.75.00 per additional U.S. note 3 to section VI for listed sulfonamides. This simple organic compound is imported for pharmaceutical and research purposes.
Sulfacetamide Sodium
Sulfacetamide sodium is a sulfonamide used in ophthalmic solutions for bacterial conjunctivitis. It falls under HTS 2935.90.75.00 as specified in additional U.S. note 3 to section VI. Imported as a sterile bulk salt for eye drop formulation.
Sulfadimidine (Sulfamethazine)
Sulfadimidine, also known as sulfamethazine, is a long-acting sulfonamide used in veterinary medicine for respiratory diseases in livestock. Covered by HTS 2935.90.75.00 under additional U.S. note 3 to section VI. Bulk powder form for animal health products.
Sulfaguanidine
Sulfaguanidine is a poorly absorbed sulfonamide used for intestinal infections like bacillary dysentery. It is included in HTS 2935.90.75.00 via additional U.S. note 3 to section VI. Supplied as a crystalline powder for oral suspension manufacturing.
Sulfamerazine
Sulfamerazine is a sulfonamide antibiotic with applications in treating meningitis and urinary infections. Classified under HTS 2935.90.75.00 as per additional U.S. note 3 to section VI for designated sulfonamides. Pure chemical for bulk import.