9902.03.03 - Dimethyl 5-nitroisophthalate (CAS No. 13290-96-5) (provided for in subheading 2917.39.70)

This HTS category, 9902.03.03, specifically classifies Dimethyl 5-nitroisophthalate, identified by CAS Number 13290-96-5. This chemical compound is subject to temporary legislation and potential modifications under trade agreements, as indicated by its placement within Chapter 99. Its inclusion here signifies a special classification provision that deviates from its standard classification, which would typically be found under subheading 2917.39.70, pertaining to other dicarboxylic acids, their anhydrides, halides, peroxides, peroxyacids, their derivatives, and esters.

As a leaf node within Chapter 99, this category does not have further subcategories. Its distinctiveness lies in its specific designation within a temporary or special provision. Unlike the broad categories found in the initial chapters of the HTS, such as live animals (Chapters 01), this node addresses a very specific chemical substance subject to unique import regulations or considerations. The purpose of such specialized entries is to manage trade flows, implement policy changes, or track specific goods with unique import requirements beyond their general chemical classification.

The practical classification criteria for this item hinge on its precise chemical identity and its designation under the temporary provision. Importers must confirm that the goods they are declaring precisely match the description of Dimethyl 5-nitroisophthalate and are indeed subject to the regulations governed by HTS code 9902.03.03. This understanding is critical for accurate customs declarations and compliance with any associated trade agreements or special import restrictions.