9902.11.45 - Polyethylenimine (CAS No. 9002-98-6), of a kind used as a component for further manufacturing into a finished medical device (provided for in subheading 3911.90.25)

This HTS classification pertains to polyethylenimine, specifically identified by CAS Number 9002-98-6. The defining characteristic of this material within this category is its intended use as a component for the further manufacturing of finished medical devices. This specific application dictates its placement within temporary legislation, distinguishing it from general-purpose polyethylenimine or other chemical compounds not designated for medical device production.

As this is a leaf node within the HTS, there are no further subcategories to explore. Therefore, classification within 9902.11.45 relies heavily on the end-use provision. Importers must be able to demonstrate that the polyethylenimine being declared is indeed destined for incorporation into a medical device, as per the stipulations outlined in subheading 3911.90.25, which provides the underlying classification for this type of chemical polymer.

This specific entry under Chapter 99 signifies a temporary or specialized tariff treatment. It is crucial to note that the general classification of polyethylenimine might fall under other chapters of the HTS, such as Chapter 39, which covers plastics and articles thereof. However, the "99" code indicates a deviation from standard tariff treatment, typically due to trade agreements, temporary legislative measures, or specific import restrictions, emphasizing the unique regulatory status of this product when used in the context of medical device manufacturing.