9902.05.50 - 4-Hydroxy-3-(3-(4'-bromo-4-biphenylyl)-1,2,3,4-tetrahydro-1-naph- thyl)coumarin (Brodifacoum) (CAS No. 56073-10-0) (provided for in subheading 2932.20.10)

This HTS category, 9902.05.50, specifically designates the rodenticide 4-Hydroxy-3-(3-(4'-bromo-4-biphenylyl)-1,2,3,4-tetrahydro-1-naphthyl)coumarin, commonly known as Brodifacoum. It is important to note that while classified under Chapter 99, which deals with temporary legislation and trade agreement modifications, Brodifacoum's primary classification for tariff purposes is found under subheading 2932.20.10 as a specific coumarin derivative. This chapter 99 provision likely reflects a temporary restriction or special tariff treatment, separate from its inherent chemical classification.

Distinguishing this category from its sibling entries within the broader HTS structure is straightforward. The sibling categories listed, such as "Live horses, asses, mules and hinnies" (0101), "Live bovine animals" (0102), and various other live animal classifications, clearly represent distinct product groups based on species and fundamental biological form. Category 9902.05.50, conversely, pertains to a synthetic chemical compound with a specific pesticidal application, entirely unrelated to live animals.

As a leaf node, 9902.05.50 does not have further subcategories within this specific chapter 99 provision. Its classification is definitive for Brodifacoum under the conditions outlined by Chapter 99. Any further subdivisions would relate to the more permanent tariff structure where Brodifacoum is primarily classified under 2932.20.10, which itself may have further subheadings based on specific chemical purity or formulation.