9902.08.18 - (4E)-4-[(2,5-Dichlorophenyl)hydrazono]-3-oxo-3,4-dihydro-2-naph- thalenecarboxylic acid (Acid dye for Pigment Red 144) (CAS No. 51867-77-7) (provided for in subheading 3204.12.45)

This HTS category, 9902.08.18, pertains to a specific chemical compound: (4E)-4-[(2,5-Dichlorophenyl)hydrazono]-3-oxo-3,4-dihydro-2-naphthalenecarboxylic acid. This substance is identified as an acid dye utilized in the production of Pigment Red 144 and is also recognized by its CAS number 51867-77-7. The classification under Chapter 99 indicates that this item is subject to temporary legislation or modifications proclaimed pursuant to trade agreements or Section 22 of the Agricultural Adjustment Act.

Distinguishing this category from its numerous siblings, which primarily cover live animals and a vast array of other goods, is straightforward. While siblings like 0101 (Live horses) or other potential categories within Chapter 99 might address different types of temporary import measures or specific goods under restriction, 9902.08.18 is exclusively designated for this particular chemical intermediate. Its specific chemical structure and designated use as a pigment precursor differentiate it from broadly defined categories.

As this node is a leaf node, there are no subcategories to introduce. Classification within 9902.08.18 is final, meaning that any goods meeting the precise description and the conditions of temporary legislation fall directly into this category. Importers should ensure that the chemical identity and intended use of the imported material precisely match the description provided for accurate customs declaration and compliance.