2921.41.10.00 - Aniline

This HTS classification covers aniline itself, a primary aromatic amine with the chemical formula C₆H₅NH₂. Aniline is a fundamental organic chemical primarily used as a precursor in the synthesis of a vast array of products, including dyes, pigments, pharmaceuticals, polymers (such as polyurethanes), and rubber processing chemicals. When classifying goods under this heading, the focus is on pure aniline or mixtures where aniline is the predominant component and its identity is clearly established.

This category is distinct from its sibling, 2921.41.20.00, which specifically covers aniline salts. While both are derived from aniline, this heading is for the free base form of aniline, whereas the sibling category is for the ionic compounds formed when aniline reacts with an acid. The classification distinction hinges on whether the substance is the neutral amine molecule or its salt.

As this is a leaf node in the HTS structure, there are no further subcategories. Therefore, classification under 2921.41.10.00 is definitive for aniline itself, provided it meets the chemical definition and is not presented as a salt or a derivative primarily classified elsewhere due to its function or more specific chemical structure.