2935.90.48.00 - Other

This HTS category, 2935.90.48.00, encompasses "Other" sulfonamide derivatives that function as anti-infective agents, but do not fall under the more specifically enumerated sibling categories. This designation is crucial for imports and exports where the precise chemical identity or intended medical application does not align with the listed specific sulfonamide drugs. Classification here requires careful consideration of the compound's pharmacological properties and its classification within the broader scope of anti-infective agents under Chapter 29.

Unlike sibling categories such as Acetylsulfaguanidine, Sulfamethazine, or Sulfathiazole, this classification is for sulfonamide anti-infectives that are not individually specified. For instance, while Salicylazosulfapyridine (Sulfasalazine) is listed, other less common or novel sulfonamide-based anti-infective drugs would likely find their place here. The distinction hinges on whether the compound is explicitly named or grouped with its sodium salt in the preceding subheadings.

As this is a leaf node, there are no further subcategories. Therefore, the classification within 2935.90.48.00 is final. Importers and exporters must ensure that the goods are indeed sulfonamides, possess anti-infective properties, and are not otherwise specifically classified within the sulfonamide drug subheadings. This category serves as a residual classification for valid sulfonamide anti-infectives that do not fit into the more defined groupings.