2921.41.20.00 - Aniline salts

This HTS category, 2921.41.20.00, specifically covers aniline salts. Aniline salts are formed when aniline, an aromatic amine with the chemical formula C₆H₅NH₂, reacts with an acid. These compounds are typically crystalline solids and are distinguished from pure aniline by their salt form, which often alters their solubility and reactivity. Examples include aniline hydrochloride, aniline sulfate, and aniline acetate.

It is crucial to differentiate aniline salts from their parent compound, aniline (HTS 2921.41.10.00). While aniline is the free base aromatic amine, salts are the ionic compounds formed through neutralization reactions. The physical and chemical properties, as well as their intended uses, can vary significantly between the free amine and its corresponding salts, dictating separate classification under the HTS.

As this is a leaf node in the HTS, there are no further subdivisions within this specific code. Therefore, the classification of a product under 2921.41.20.00 hinges on its precise chemical identity as a salt derived from aniline and an acid, adhering strictly to the definitions and nomenclature outlined in Chapter 29 of the Harmonized Tariff Schedule.