4,7-Dichloroquinoline
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a piperidine ring fused or substituted
Quinolines with additional heterocyclic rings like piperidine shift to specific subheadings within 2933.49 based on structure.
If classified as a pharmaceutical intermediate rather than pure chemical
Compounds primarily used as drug intermediates may fall under different 2933 subheadings depending on their specific application and purity.
If imported as part of a salt form or derivative
Organic salts or derivatives of heterocyclic compounds are classified in Chapter 29 heading based on the parent compound occurring last numerically.
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Import Tips & Compliance
• 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
Related Products under HTS 2933.49.08.00
4,7-Dichloroquinoline 98% Technical Grade
Technical grade 4,7-dichloroquinoline with 98% purity is used as a synthetic intermediate for agrochemicals and pharmaceuticals, falling under HTS 2933.49.08.00 due to its specific quinoline ring substitution. The chapter notes confirm classification of pure chemically defined heterocyclic compounds.
4,7-Dichloroquinoline Stabilized with Antioxidant
Stabilized 4,7-dichloroquinoline with added antioxidant for transport preservation, permitted under Chapter 29 note (f), maintains classification in HTS 2933.49.08.00 as the primary compound remains chemically defined. Used in multi-step synthesis of quinoline-based APIs.
4,7-Dichloroquinoline Hydrochloride Salt
The hydrochloride salt form of 4,7-dichloroquinoline, classified with the parent base under HTS 2933.49.08.00 per Chapter Note 3(C)(1) for inorganic salts of organic compounds. Improves handling properties for pharmaceutical intermediate applications.
High Purity 4,7-Dichloroquinoline 99.5%+ for API Synthesis
Ultra-high purity 4,7-dichloroquinoline (>99.5%) specifically manufactured for active pharmaceutical ingredient synthesis, classified under HTS 2933.49.08.00 as a chemically defined quinoline derivative. Meets stringent pharma intermediate specifications.
4,7-Dichloroquinoline in Ethanol Solution 10% w/v
10% w/v solution of 4,7-dichloroquinoline in ethanol for safe transport, classified under HTS 2933.49.08.00 per Chapter Note (e) as solvent dissolution necessary for safety/transport. Ethanol evaporates during use in synthesis.
4,7-Dichloroquinoline with Anti-Dusting Agent
4,7-Dichloroquinoline powder treated with anti-dusting agent for safe handling, permitted under Chapter Note (g) and classified in HTS 2933.49.08.00. The addition facilitates identification/safety without specific use suitability.