9902.11.46 - 1,6-diisocyanatohexane; 2,4-diisocyanato-1-methylbenzene polymer (CAS No. 26426-91-5) in n-butyl acetate (provided for in subheading 3911.90.45)

This HTS category, 9902.11.46, covers specific polymeric materials identified by CAS number 26426-91-5. These polymers are derived from the reaction of 1,6-diisocyanatohexane and 2,4-diisocyanato-1-methylbenzene, and are presented in a solution of n-butyl acetate. This classification is within Chapter 99, which pertains to temporary legislation and special provisions, and specifically references a provision under subheading 3911.90.45, indicating a temporary modification or special treatment for these goods.

Distinguishing this category from its siblings at the HTS Database Root level, which include live animals such as horses, bovine animals, swine, sheep, goats, and poultry, is straightforward. HTS 9902.11.46 deals with synthetic polymeric substances in a liquid or semi-liquid form, not live organisms. The scope of Chapter 99 itself is distinct from the primary chapters of the HTS that classify goods based on their inherent nature and composition.

As this node is a leaf node, there are no further subcategories to explore. Therefore, classification under 9902.11.46 hinges on the precise identification of the polymer by its chemical composition and the presence of n-butyl acetate as a solvent, as well as adherence to any specific temporary import regulations or trade agreement provisions associated with this code. Importers must ensure their goods precisely match the description and CAS number to correctly utilize this specialized classification.