3824.85.00.00 - Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO,INN)

This HTS category, 3824.85.00.00, specifically classifies chemical products and preparations containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH), including its isomer commonly known as lindane. These are typically formulations or mixtures where HCH is a primary component, often used historically as an insecticide or for other specialized chemical applications. The defining characteristic for classification under this subheading is the presence of HCH, irrespective of its specific isomer content, as long as it is a significant constituent of the preparation.

To differentiate this category from its siblings, consider the specific chemical compound identified. For instance, 3824.81.00.00 covers preparations containing oxirane (ethylene oxide), while 3824.82 deals with materials containing polychlorinated biphenyls (PCBs). Similarly, 3824.83.00.00 is for tris(2,3-dibromopropyl) phosphate, and 3824.84.00.00 enumerates a list of other specific organochlorine pesticides like aldrin and DDT. This subheading, 3824.85.00.00, is distinct because its classification criterion is exclusively the presence of 1,2,3,4,5,6-hexachlorocyclohexane (HCH) and its common form, lindane.

As a leaf node within the HTS, 3824.85.00.00 does not have further subcategories. Therefore, the classification of goods under this heading relies entirely on the confirmation of the presence of HCH or lindane as a component of the chemical preparation. Importers and exporters should ensure accurate chemical analysis to verify the composition of their goods for correct customs declaration.