9902.05.82 - N-[1-(4-Isopropoxy-2-methylphenyl)-2-methyl-1-oxopropan- 2-yl]-3-methylthiophene-2-carboxamide (Isofetamid) (CAS No. 875915-78-9) (provided for in subheading 2933.39.21)

This HTS classification, 9902.05.82, pertains to a specific chemical compound, N-[1-(4-Isopropoxy-2-methylphenyl)-2-methyl-1-oxopropan-2-yl]-3-methylthiophene-2-carboxamide, also known by its common name Isofetamid and identified by CAS No. 875915-78-9. This designation falls under Chapter 99, which covers temporary legislation and modifications to the Harmonized Tariff Schedule, often related to trade agreements or specific import restrictions. The parenthetical reference to subheading 2933.39.21 indicates that the primary classification for Isofetamid, in the absence of these temporary provisions, would be within Chapter 29, covering organic chemicals.

As a leaf node within Chapter 99, this specific HTS code signifies a temporary duty or restriction applied to Isofetamid. Unlike the broad categories of live animals or agricultural products represented by the sibling categories beginning with "01", this classification is focused on a single, precisely defined chemical entity. The purpose of this distinct classification is to manage the import of Isofetamid, likely due to specific trade policies, temporary tariffs, or regulatory requirements that supersede its standard classification under Chapter 29.

Because this is a leaf node, there are no further subcategories. The classification 9902.05.82 represents the ultimate level of detail for this particular temporary provision concerning Isofetamid. The context provided by the parent, Chapter 99, emphasizes that this classification is not a permanent descriptor of the chemical's inherent properties but rather a mechanism for temporary trade control. Importers must consult the accompanying regulations and notes within Chapter 99 to fully understand the implications of importing goods under this HTS code.