2909.49 - Other:

This category, HTS 2909.49, encompasses a diverse range of ether-alcohols and their derivatives that are not specifically classified under the preceding subheadings. It includes compounds where an ether linkage connects to an alcohol functional group, and which may also be further modified by halogenation, sulfonation, nitration, or nitrosation. These substances can serve various industrial purposes, acting as solvents, intermediates in chemical synthesis, or components in formulations for sectors such as pharmaceuticals, plastics, and textiles.

To differentiate this category from its siblings, HTS 2909.41.00.00 specifically covers 2,2'-Oxydiethanol (Diethylene glycol, Digol). HTS 2909.43.00.00 addresses the monobutyl ethers of ethylene glycol or diethylene glycol, and HTS 2909.44.01 is designated for other monoalkyl ethers of ethylene glycol or diethylene glycol. Therefore, HTS 2909.49 is the residual category for ether-alcohols and their derivatives that do not fit the more precise definitions of these enumerated siblings.

The subcategories under HTS 2909.49 further refine the classification based on the chemical structure of the ether-alcohol derivative. The "Aromatic" subcategory pertains to compounds where the ether-alcohol structure is directly attached to an aromatic ring system. The "Other" subcategory serves as a catch-all for remaining ether-alcohols and their derivatives that do not fall under the aromatic designation, thus ensuring comprehensive coverage within this broad class of organic chemicals.