2918.99.06.00 - 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid

This HTS classification, 2918.99.06.00, specifically covers two distinct organic chemical compounds: 1-Hydroxy-6-octadecyloxy-2-naphthalene carboxylic acid and 1-Hydroxy-6-docosyloxy-2-naphthalene carboxylic acid. Both are complex carboxylic acids featuring a naphthalene ring system with an additional hydroxyl group and a long-chain alkoxy substituent. Their structure indicates they are derivatives of naphthalene-2-carboxylic acid, modified with oxygen-containing functional groups.

This subcategory distinguishes itself from its siblings by the specific chemical structure of the compounds included. For instance, sibling categories 2918.99.05.00 and 2918.99.14.00 encompass different aromatic carboxylic acids with varied functional groups and applications, such as p-anisic acid or phenoxybenzoic acid, which lack the naphthalene core and long aliphatic ether chains characteristic of this entry. The "Other" designation at this level signifies that these particular naphthalene-derived carboxylic acids do not fit into more narrowly defined sub-classifications within the broader category of aromatic carboxylic acids with additional oxygen functions.

As this node is a leaf node within the HTS structure, there are no further subcategories. Therefore, the classification relies on the precise chemical identity of the imported or exported goods to align with the descriptions provided. Accurate identification of these specific naphthalene carboxylic acid derivatives is crucial for correct classification and subsequent duty assessment.