9902.10.86 - Perfluoropolymethylisopropyl ether having a boiling point above 170 degrees Celsius (CAS No. 69991-67-9) (provided for in subheading 3904.69.50)

This HTS classification, 9902.10.86, specifically designates Perfluoropolymethylisopropyl ether with a boiling point exceeding 170 degrees Celsius, identified by CAS No. 69991-67-9. While the primary classification for this chemical is found under subheading 3904.69.50, this particular code within Chapter 99 indicates a temporary modification or specific trade agreement provision applied to this substance. It is crucial to note that Chapter 99 codes are generally used for temporary legislation, trade agreement modifications, or specific import restrictions, rather than the permanent classification of goods.

Distinguishing this entry from its sibling categories within the HTS database, which predominantly cover live animals, is straightforward. This classification pertains to a specific fluorinated organic chemical compound, not live animals of any kind. The scope of Chapter 99 is distinct from the core product chapters of the HTS, focusing instead on legislative and trade policy-driven classifications.

As this is a leaf node in the HTS structure, there are no further subcategories. Therefore, the focus for classification purposes under 9902.10.86 is on ensuring the imported substance precisely matches the description: Perfluoropolymethylisopropyl ether with the specified boiling point. Importers must confirm that the chemical's characteristics align with this precise entry, acknowledging its placement within temporary legislation rather than a standard product chapter.