Anhydrous Tolmetin Sodium for API Manufacturing from China
Anhydrous tolmetin sodium is imported as a key intermediate for producing anti-inflammatory medications, featuring a nitrogen-containing heterocyclic ring system. HTS 2933.99.55.30 applies due to its drug status as a CNS-affecting analgesic. Supplied in drums for large-scale pharma production.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Ensure transport in moisture-proof packaging to maintain anhydrous form; provide ICH stability studies
• Common pitfall: incorrect declaration as dihydrate leading to duty disputes