2933.49.08.00/4,7-Dichloroquinoline/Mexico

4,7-Dichloroquinoline from Mexico

4,7-Dichloroquinoline is a heterocyclic compound containing a quinoline ring system with chlorine atoms at the 4 and 7 positions, classified under HTS 2933.49.08.00 as a nitrogen hetero-atom compound with a quinoline structure not further fused. It serves as a key intermediate in pharmaceutical synthesis, particularly for antimalarial drugs like chloroquine derivatives.

Duty Rate — Mexico → 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)

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Import Tips

• Provide detailed chemical analysis (NMR, MS) confirming the 4,7-dichloroquinoline structure to avoid misclassification as other quinolines

• Include Safety Data Sheets (SDS) and purity certificates (>98%) as documentation for customs, especially for REACH/ TSCA compliance

• Avoid common pitfalls like insufficient impurity disclosure, which can trigger FDA scrutiny for pharmaceutical intermediates