2916.39.79.00 - Other

This HTS classification, 2916.39.77.00, specifically covers aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids, and their derivatives, that do not fall into more specific subcategories. It encompasses a broad range of compounds characterized by a carboxyl group (-COOH) directly attached to an aromatic ring, or its functional equivalents, along with any halogenated, sulfonated, nitrated, or nitrosated derivatives. The key distinguishing factor for this category is the presence of an aromatic moiety and the absence of a specific ester of phenylacetic acid, which is classified under the sibling category.

The scope of "Other" here means that classification into this code is a residual determination. It applies when goods meet the broad description of aromatic monocarboxylic acid derivatives but do not fit into more granular subheadings within Chapter 29, such as specific acids or their common salts, or the aforementioned phenylacetic acid esters. The focus remains on the fundamental chemical structure: an aromatic ring fused with a carboxylic acid or its reactive derivatives.

As this is a leaf node, there are no further subcategories to introduce. Classification into 2916.39.77.00 signifies that the product has been meticulously evaluated against all preceding, more specific HTS codes for aromatic monocarboxylic acids and their derivatives, and has been determined to belong in this general "other" category. Practical classification relies on precise chemical identification and confirmation that the goods do not align with any prior, more defined tariff lines.