9902.03.01 - Naphthalene-1,8:4,5-tetracarboxylic dianhydride (CAS No. 81-30-1) (provided for in subheading 2917.39.70)

This HTS classification, 9902.03.01, pertains to Naphthalene-1,8:4,5-tetracarboxylic dianhydride, identified by CAS No. 81-30-1. This specific chemical compound is temporarily provided for under this Chapter 99 heading as a special classification provision, often due to temporary legislation or trade agreement modifications. Its primary purpose is typically as an intermediate in the production of dyes, pigments, and other organic chemicals, distinguished by its unique molecular structure derived from naphthalene.

As a Chapter 99 provision, this entry stands apart from the standard Chapter 01 headings, which cover live animals such as horses, bovine animals, swine, sheep, goats, and poultry. Unlike the broad categories of live animals found in the sibling listings, 9902.03.01 is highly specific, focusing on a single, complex organic chemical compound rather than living organisms. The context of Section XXII, "Special Classification Provisions," further indicates that this code is for administrative or temporary tariff purposes, distinct from the core product classifications found in earlier chapters.

Since this node is a leaf node, there are no subcategories to introduce. Classification under 9902.03.01 is definitive for the specified dianhydride. The key classification criteria rely on the precise chemical identity and its provision under temporary tariff measures, differentiating it from broader chemical categories or unrelated goods. Importers should note that the underlying classification for this chemical, before its inclusion under this special provision, is within Chapter 29, specifically subheading 2917.39.70.