9902.04.65 - 2,4,5,6-Tetrachloroisophthalonitrile (Chlorothalonil) (CAS No. 1897-45-6) (provided for in subheading 2926.90.21)

This HTS code, 9902.04.65, designates a specific temporary classification for 2,4,5,6-Tetrachloroisophthalonitrile, more commonly known as Chlorothalonil. This classification is provided for under subheading 2926.90.21, indicating that it is a chemical compound, specifically a nitrile, not elsewhere specified or included. Chlorothalonil is an organochlorine compound primarily used as a broad-spectrum fungicide in agriculture, protecting crops from a variety of fungal diseases. Its unique chemical structure and fungicidal properties differentiate it from other chemicals that might fall under broader nitrile classifications.

As a leaf node within Chapter 99, which houses temporary legislation and special provisions, this category does not have further subcategories. Its purpose is to address specific trade regulations or modifications that apply to Chlorothalonil, often related to import restrictions or special tariff treatments, as indicated by its inclusion in Section XXII. Unlike the broader classifications in Chapter 29 which detail the chemical nature of goods, this Chapter 99 entry highlights a particular regulatory status or a temporary measure affecting this specific chemical. Therefore, classification under 9902.04.65 is contingent not only on the chemical identity of Chlorothalonil but also on the prevailing trade agreements and legislative proclamations in effect at the time of importation.