9817.29.01 - Cyclic organic chemical products in any physical form having an aromatic or modified aromatic structure, however provided for in chapter 29 (but excluding 2,3-dihydroxynaphthalene-6-sulfonic acid, sodium salt), to be used in the manufacture of photographic color couplers; photographic color couplers (but excluding 2,3-dihydroxynaphthalene-6-sulfonic acid, sodium salt) (all the foregoing goods however provided for in chapter 29 or in subheading 3707.90.31, 3707.90.32 or 3707.90.60)

This HTS category, 9817.29.01, specifically addresses certain cyclic organic chemical products and photographic color couplers intended for use in photographic manufacturing. The core requirement is that these products, regardless of their physical form, must possess an aromatic or modified aromatic structure and be classified within Chapter 29 of the HTS or under specific subheadings within Chapter 37. Notably, this classification excludes the compound 2,3-dihydroxynaphthalene-6-sulfonic acid, sodium salt, even if it otherwise meets the criteria.

Unlike the broad array of sibling categories at the HTS root level that cover diverse goods such as live animals and various commodities, this category focuses on highly specialized chemicals and photographic materials. Its distinctiveness lies in its dual classification criteria: the chemical nature of the product (cyclic organic with aromatic structure) and its intended end-use in the photographic industry, specifically for the creation of color couplers.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. The classification is highly specific, requiring careful examination of both the chemical composition and the declared use of the imported or exported product to ensure accurate application. Importers and exporters should pay close attention to the exclusion clause for 2,3-dihydroxynaphthalene-6-sulfonic acid, sodium salt, as its presence would necessitate classification under a different HTS code.