9902.05.88 - 4-Hydroxy-3-[[2-[(2-methoxyethoxy)methyl]-6-(trifluor- omethyl)-3-pyridinyl]carbonyl]bicyclo[3.2.1]oct- 3-en-2-one (Bicyclopyrone) (CAS No. 352010-68-5) (provided for in subheading 2933.39.25)

This HTS category, 9902.05.88, specifically covers the chemical compound known as Bicyclopyrone (CAS No. 352010-68-5). While its chemical name is 4-Hydroxy-3-[[2-[(2-methoxyethoxy)methyl]-6-(trifluoromethyl)-3-pyridinyl]carbonyl]bicyclo[3.2.1]oct-3-en-2-one, for practical classification purposes, it is identified by its common name, Bicyclopyrone, and its CAS number. This compound is typically used as an agricultural chemical, specifically as a herbicide.

This classification exists within Section XXII of the Harmonized Tariff Schedule, which deals with Special Classification Provisions, Temporary Legislation, and Temporary Modifications. Unlike the primary HTS chapters which classify goods based on their fundamental nature (e.g., Chapter 01 for live animals), Chapter 99 is reserved for temporary provisions, including those related to trade agreements and specific import restrictions. Therefore, this entry is distinct from the typical goods found in other HTS chapters, as it represents a specialized, likely temporary, tariff treatment rather than a broad product category.

As a leaf node within the HTS database, HTS code 9902.05.88 does not have further subcategories. This means that any import or export of Bicyclopyrone, identified by its CAS number and common name, will be classified directly under this specific code. The "provided for in subheading 2933.39.25" notation indicates its primary classification under the regular HTS structure for heterocyclic compounds with a nitrogen atom or atoms, further highlighting its specific chemical nature.