2922.39 - Other:

This category, HTS 2922.39, encompasses a specific group of amino-compounds that contain oxygen functionality. It primarily includes amino-aldehydes, amino-ketones, and amino-quinones. Crucially, these compounds must not contain more than one type of oxygen function, distinguishing them from more complex molecules. Salts of these specified amino-aldehydes, amino-ketones, and amino-quinones are also included within this classification.

This category serves as a residual classification for amino-compounds with oxygen functions that do not fall into more specific sibling categories. Specifically, it differs from HTS 2922.31.00.00, which exclusively covers amfepramone, methadone, and normethadone, along with their respective salts. Therefore, any amino-aldehyde, amino-ketone, or amino-quinone with oxygen functionality that is not one of these named substances would typically be classified under 2922.39.

Within HTS 2922.39, further subdivisions exist to provide more granular classification. The subcategory "Aromatic" indicates a distinction based on the presence of an aromatic ring within the chemical structure of the amino-aldehyde, amino-ketone, or amino-quinone. The subsequent "Other" subcategory (2922.39.50.00) is for those compounds that do not meet the criteria for the "Aromatic" subdivision, effectively capturing any remaining products within the broader scope of 2922.39.