6,7,8-Trifluoro-4-Oxo-1,4-Dihydroquinoline-3-Carboxylic Acid Ethyl Ester from China
Synonym product for the exact compound in HTS 2933.49.17.00, a fluorinated quinolinecarboxylate intermediate. Used in organic synthesis for advanced pharmaceutical intermediates. Classified specifically due to its enumerated chemical name in the tariff schedule.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%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
• Use IUPAC naming consistently on commercial invoices to match tariff description exactly
• Obtain FDA import alerts clearance if downstream use is pharmaceutical
• Monitor REACH-like compliance for EU-origin chemicals entering US supply chains