2922.50.40.00 - Other

This classification pertains to aromatic amino-compounds possessing oxygen-containing functional groups that do not fit into more specific subheadings within heading 2922. Examples include compounds where an amino group and an oxygen-containing function (such as a hydroxyl or ether group) are both attached to an aromatic ring, but which are not otherwise specifically enumerated. The "Other" designation here indicates a residual category for these specialized aromatic amino-alcohols, amino-acids, and similar compounds with oxygen functionality.

It is important to distinguish this subheading from its sibling, 2922.50.35.00. The sibling specifically covers products that are further defined by additional U.S. note 3 to section VI, indicating a specific set of criteria or listed substances that are treated separately. Therefore, this "Other" category encompasses those aromatic amino-compounds with oxygen function that *do not* meet the criteria of additional U.S. note 3.

As this is a leaf node, there are no further subcategories. Classification at this level requires careful consideration of the chemical structure and absence of specific enumeration elsewhere in heading 2922 or other relevant headings within Chapter 29. The defining characteristic is the presence of both an amino group and an oxygen function on an aromatic structure, with the exclusion of compounds covered by more precise descriptions or specific U.S. notes.