Ethyl 6,7,8-Trifluoro-1,4-Dihydro-4-Oxo-3-Quinolinecarboxylate
This is a chemically defined heterocyclic compound containing a quinoline ring system with nitrogen hetero-atom and trifluoro substitutions, specifically matching HTS 2933.49.17.00. It serves as a key intermediate in synthesizing fluoroquinolone antibiotics like norfloxacin. Classified here due to its precise chemical structure as a non-fused quinoline derivative.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a phenothiazine ring system instead
Phenothiazine derivatives fall under specific subheading 2933.49.15 within the same heterocyclic nitrogen compounds category.
If chemically modified into a finished antibiotic like norfloxacin
Completed antibiotics and their derivatives are classified in heading 2941 for specific pharmaceutical products.
If imported as mixture with solvents exceeding safety/transport limits
Solutions not qualifying under chapter note (e) are classified as chemical preparations in Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide detailed chemical analysis certificates (COA) confirming purity and structure match to avoid misclassification
• Declare exact CAS number if available and stabilizer content; impurities may affect duty if exceeding chapter note limits
• Comply with TSCA pre-notice requirements for new chemical substances when importing into the US
Related Products under HTS 2933.49.17.00
Ethyl Ethyl-6,7,8-Trifluoro-1,4-Dihydro-4-Oxoquinoline-3-Carboxylate Powder
Pharmaceutical-grade powder form of this specific quinoline derivative used in API synthesis for antibacterial drugs. Falls under HTS 2933.49.17.00 as a separate chemically defined organic compound with quinoline ring per Chapter 29 notes. The trifluoro and ester groups define its precise classification.
6,7,8-Trifluoro-4-Oxo-1,4-Dihydroquinoline-3-Carboxylic Acid Ethyl Ester
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.