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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| ๐จ๐ณChina | 6.5% | โ | 6.5% |
| ๐ฒ๐ฝMexico | 6.5% | โ | 6.5% |
| ๐จ๐ฆCanada | 6.5% | โ | 6.5% |
| ๐ฉ๐ชGermany | 6.5% | โ | 6.5% |
| ๐ฏ๐ตJapan | 6.5% | โ | 6.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If methylpyrimidine structure emphasized
Therapeutic sulfonamide classification takes precedence.
If antisera for meningitis containing sulfamerazine
Immunological products excluded from Chapter 29 per note (e).
If research chemical grade
Non-GMP research chemicals class as laboratory reagents.
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Import Tips & Compliance
โข CSF penetration studies validate meningitis indication
โข Triple sulfonamide compatibility data for combo therapies
โข Batch uniformity testing prevents potency variation
Related Products 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.