2935.90.42.00/Sulfasalazine USP Powder/Mexico

Sulfasalazine USP Powder from Mexico

Sulfasalazine is a sulfonamide antibiotic chemically known as salicylazosulfapyridine, used primarily for treating ulcerative colitis and rheumatoid arthritis. This USP-grade powder form falls under HTS 2935.90.4200 as it is specifically listed as an anti-infective agent within the sulfonamides category of Chapter 29. It is supplied as a bulk pharmaceutical intermediate for compounding into tablets or suspensions.

Duty Rate — Mexico → United States

110%

Rate breakdown

9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Obtain FDA Drug Master File (DMF) and ensure Certificate of Analysis confirms USP purity standards for pharmaceutical-grade imports

• Provide detailed stability data and impurity profiles as required for anti-infective sulfonamides under FDA import alerts

• Avoid common pitfalls by verifying the product meets 'drugs' classification rather than veterinary use which may shift to different HTS