Sulfadiazine Sodium
Sulfadiazine sodium is the water-soluble salt form of sulfadiazine, a sulfonamide antibiotic used for toxoplasmosis treatment and burn wound infections. Classified under HTS 2935.90.95.00 as an inorganic salt of an organic sulfonamide compound per Chapter 29 note on salts, taking the heading of the parent organic compound.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as veterinary sulfonamide
Sulfonamides primarily for animal use have separate subheading.
If containing >30% hydrogen peroxide stabilizer
Certain stabilized medicinal chemicals shift to Chapter 28.
If for immunological product mixtures
Chapter 29 excludes immunological products covered in 3002.
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Import Tips & Compliance
• Verify sodium salt form via HPLC certificate; pure base form may classify differently
• Include ICH stability data for sodium salts, which are more hygroscopic
Related Products under HTS 2935.90.95.00
Sulfisoxazole Diolamine
Sulfisoxazole diolamine is the diethanolamine salt of sulfisoxazole, used in ophthalmic and systemic antibacterial formulations. It qualifies for HTS 2935.90.95.00 as a salt of a sulfonamide antibiotic, classified with the parent sulfonamide per Chapter 29 salt classification rules.
Mefenamic Acid
Mefenamic acid is an anthranilic acid derivative with sulfonamide-related structure used as NSAID for dysmenorrhea and arthritis. Though primarily carboxylic acid, its sulfonamide characteristics place it under HTS 2935.90.95.00 as 'Other' sulfonamides.
Celecoxib API
Celecoxib is a COX-2 selective NSAID containing a sulfonamide group, used for arthritis treatment. Classified under HTS 2935.90.95.00 due to its pyrazole-sulfonamide structure qualifying as an 'Other' sulfonamide.
Sulfanilamide
Sulfanilamide is the parent compound of all sulfonamide antibiotics, historically significant for treating streptococcal infections. As the simplest sulfonamide not covered by prior specific subheadings, it classifies under HTS 2935.90.95.00.
Acetazolamide
Acetazolamide is a carbonic anhydrase inhibitor sulfonamide used for glaucoma, altitude sickness, and epilepsy. Its benzothiazole-sulfonamide structure places it in HTS 2935.90.95.00 as an 'Other' sulfonamide.
Furosemide
Furosemide is a loop diuretic containing a furfuryl-sulfonamide structure, used for edema and hypertension. Classified under HTS 2935.90.95.00 as a sulfonamide derivative despite primary diuretic function.