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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 2935.90.48.00
Sulfamethoxazole USP
Sulfamethoxazole is a synthetic bacteriostatic sulfonamide antibiotic used primarily as an anti-infective agent against gram-positive and gram-negative bacteria. It falls under HTS 2935.90.4800 as a sulfonamide classified as an anti-infective drug, typically used in combination therapies like co-trimoxazole. This chemically defined organic compound meets Chapter 29 note (a) for separate sulfonamides.
Sulfadiazine Sodium
Sulfadiazine sodium is a water-soluble salt form of the sulfonamide antibiotic sulfadiazine, used for treating toxoplasmosis and other bacterial infections. Classified under HTS 2935.90.4800 as a sulfonamide anti-infective drug per Chapter 29 note (C)(1) for inorganic salts of organic compounds. The sodium salt retains the sulfonamide therapeutic classification.
Sulfapyridine Base
Sulfapyridine is a historic sulfonamide antibiotic still used in dermatological treatments like dermatitis herpetiformis. Falls under HTS 2935.90.4800 as a chemically defined sulfonamide anti-infective agent per Chapter 29(a). Its continued pharmacological use maintains drug classification despite age.
Sulfamethizole Powder
Sulfamethizole is a fast-acting sulfonamide specifically indicated for urinary tract infections. Classified under HTS 2935.90.4800 as a sulfonamide anti-infective drug meeting Chapter 29 requirements for separate chemically defined compounds. Typically imported as sterile powder for injection or oral suspension.
Sulfathiazole Sodium
Sulfathiazole sodium combines sulfonamide antibiotic with thiazole ring for broad-spectrum antibacterial activity. HTS 2935.90.4800 classification as sulfonamide anti-infective per Chapter 29 note (C)(1) for organic salts. Used historically in wound dressings and systemic infections.
Succinylsulfathiazole
Succinylsulfathiazole is a poorly absorbed sulfonamide designed for intestinal infections, releasing active sulfathiazole locally. Classified HTS 2935.90.4800 as sulfonamide anti-infective per Chapter 29 ester classification rules. Used in ulcerative colitis and bacillary dysentery treatment.
Phthalylsulfathiazole
Phthalylsulfathiazole (Talinol) provides poor absorption for localized intestinal antibacterial action against Shigella and E. coli. HTS 2935.90.4800 as sulfonamide anti-infective ester per Chapter 29 classification notes. Hydrolyzed in alkaline intestine to active form.
Sulfaguanidine Crystals
Sulfaguanidine, sparingly soluble for local gut action, treats bacillary dysentery and pre-surgical bowel prep. Classifies HTS 2935.90.4800 as sulfonamide anti-infective meeting Chapter 29(a) chemically defined compound criteria. Guanidine substitution provides unique solubility profile.
Sulfanilamide Powder USP
Sulfanilamide, the parent compound of all sulfonamides, provides broad-spectrum antibacterial activity. HTS 2935.90.4800 classification as prototypical sulfonamide anti-infective per Chapter 29(a). Still used topically in vaginal infections and experimentally.
Sulfacetamide Sodium Ophthalmic Grade
Sulfacetamide sodium 10-30% solutions treat bacterial conjunctivitis and trachoma. HTS 2935.90.4800 as sulfonamide anti-infective salt per Chapter 29(C)(1). High water solubility ideal for ophthalmic delivery.
Sulfadoxine Base
Sulfadoxine, long-acting sulfonamide, combined with pyrimethamine for falciparum malaria. HTS 2935.90.4800 classification as anti-infective sulfonamide per Chapter 29. 7-day half-life enables weekly prophylaxis.
Sulfamerazine
Sulfamerazine, intermediate-acting sulfonamide, penetrates CSF for meningitis treatment. Classifies HTS 2935.90.4800 as sulfonamide anti-infective meeting Chapter 29 purity standards. Used in combination with other sulfonamides.
Sulfamethoxydiazine
Sulfamethoxydiazine offers extended action for chronic infections with good tissue penetration. HTS 2935.90.4800 as sulfonamide anti-infective per Chapter 29(a). Used in nocardiosis and toxoplasmosis.
Sulfapyridine Silver Salt
Silver sulfadiazine 1% cream prevents burn wound infections; silver ions potentiate sulfonamide. HTS 2935.90.4800 classification as sulfonamide anti-infective coordination compound per Chapter 29 note (C)(3). Poorly absorbed for topical action.
Sulfisoxazole Acetyl
Sulfisoxazole acetyl is the acetylated prodrug form of sulfisoxazole, a short-acting sulfonamide antibiotic effective against urinary tract infections. It qualifies under HTS 2935.90.4800 as a sulfonamide anti-infective per Chapter 29 structure, where the acetyl group doesn't alter primary sulfonamide classification. Used primarily in pediatric formulations.