9902.03.28 - (R)-(+)-2-(4-Hydroxyphenoxy)propionic acid (CAS No. 94050-90-5)(provided for in subheading 2918.99.43)

This HTS category, 9902.03.28, specifically classifies (R)-(+)-2-(4-Hydroxyphenoxy)propionic acid, identified by CAS Number 94050-90-5. This compound is subject to special classification provisions and temporary modifications, as indicated by its placement within Chapter 99 of the Harmonized Tariff Schedule. While the general description notes its provision for under subheading 2918.99.43, this Chapter 99 heading denotes a specific, often temporary, trade or restriction measure applied to this particular chemical.

Given that this is a leaf node within the HTS database, it represents the most specific level of classification for this particular item under these special provisions. Therefore, distinguishing it from siblings at this level is less about broad product categories and more about understanding its unique regulatory status. Unlike the broad, ongoing classifications of live animals or agricultural products in earlier chapters, this entry pertains to a singular chemical compound that is being monitored or has specific temporary import conditions attached, as dictated by the trade agreements or agricultural adjustment legislation referenced in the parent chapter.

The absence of subcategories means that HTS 9902.03.28 is the final designation for this chemical under these special provisions. Its classification is definitive for customs purposes, indicating that any importation of (R)-(+)-2-(4-Hydroxyphenoxy)propionic acid under these specific trade or legislative circumstances would be processed according to the rules and duties associated with this precise code. Users should consult the detailed notes and any associated proclamations or modifications linked to this Chapter 99 heading for precise tariff and entry requirements.