9902.05.65 - 5-Fluoro-1,3-dimethyl-N-[2-(4-methylpentan-2-yl)phe- nyl]-1H-pyrazole-4-carboxamide (CAS No. 494793-67-8) (provided for in subheading 2933.19.23)

This HTS category, 9902.05.65, specifically covers the chemical compound 5-Fluoro-1,3-dimethyl-N-[2-(4-methylpentan-2-yl)phenyl]-1H-pyrazole-4-carboxamide, identified by CAS Number 494793-67-8. This classification falls under Chapter 99, which pertains to temporary legislation and special provisions, indicating that its inclusion here is not based on the inherent nature of the substance but rather on specific trade or regulatory actions. The parenthetical note "provided for in subheading 2933.19.23" further clarifies that this compound, when not subject to the temporary provisions of Chapter 99, would ordinarily be classified under the permanent structure of the HTS, specifically within heading 2933, which covers heterocyclic compounds.

As a leaf node within Chapter 99, this category does not have further subcategories. Its existence as a distinct code signifies a unique treatment or restriction applied to this particular chemical under specific trade agreements or legislative mandates. It is crucial to note that while its permanent classification would be within Chapter 29, its current placement in Chapter 99 signifies a special, likely temporary, import regulation or tariff modification that takes precedence for the purposes of customs entry.

Therefore, any importation of 5-Fluoro-1,3-dimethyl-N-[2-(4-methylpentan-2-yl)phenyl]-1H-pyrazole-4-carboxamide must be classified under 9902.05.65 when applicable, overriding its standard classification under Chapter 29. This distinction highlights the dynamic nature of the HTS, where temporary provisions can significantly alter the applicable tariff and regulatory requirements for specific goods. Importers must diligently ascertain whether the conditions triggering this Chapter 99 provision are met at the time of entry.