2933.49.08.00 - 4,7-Dichloroquinoline

This HTS subheading, 2933.49.08.00, specifically classifies 4,7-Dichloroquinoline. This compound is characterized by its quinoline ring system with two chlorine atoms substituted at the 4 and 7 positions. It falls under the broader category of heterocyclic compounds containing nitrogen, and more specifically, those with a quinoline or isoquinoline ring system that are not further fused.

Distinguishing this entry from its siblings, 2933.49.10.00 (Ethoxyquin) and 2933.49.15.00 (8-Methylquinoline and Isoquinoline), lies in the precise chemical structure. While all involve quinoline or isoquinoline rings, 4,7-Dichloroquinoline is defined by its specific dichlorination pattern. Similarly, it differs from 2933.49.17.00 (Ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylate) due to the absence of fluorine atoms and the ester group, and a different ring saturation state.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, the classification of 4,7-Dichloroquinoline under 2933.49.08.00 is final, based on its unique chemical identity as a dichlorinated quinoline derivative. Any variations in substituents or ring structures would necessitate classification under a different, more specific or broader, HTS code.