4,7-Dichloroquinoline from China
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 — China → United States
Rate breakdown
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