2916.34 - Phenylacetic acid and its salts:

This HTS category, Phenylacetic acid and its salts, specifically encompasses chemical compounds derived from phenylacetic acid. Phenylacetic acid itself, a carboxylic acid with a phenyl group attached to acetic acid, is a key component. This classification also includes any salts formed by the reaction of phenylacetic acid with bases. These substances are primarily used as intermediates in the synthesis of various organic compounds, including pharmaceuticals, perfumes, and pesticides.

To differentiate this category from its siblings, it is important to note that 2916.31 covers benzoic acid and its derivatives, while 2916.32 deals with specific benzoyl compounds like benzoyl peroxide and benzoyl chloride. Category 2916.39, "Other," serves as a catch-all for aromatic monocarboxylic acids and their derivatives not otherwise specified. This node, 2916.34, is precisely defined by the structure of phenylacetic acid, distinguishing it from the broader benzoic acid derivatives or other aromatic acids.

Under this heading, further subclassification is provided to delineate specific forms. The subcategory 2916.34.10.00 specifically identifies Phenylacetic acid, also known as α-Toluic acid. The existence of an "Other" subcategory allows for the classification of any remaining salts or derivatives of phenylacetic acid that do not fall under the more specific designation, ensuring comprehensive coverage within this defined chemical family.