2905.49 - Other:

This category, HTS 2905.49, encompasses "Other" polyhydric alcohols, meaning those that do not fall under the specific enumerated subheadings for trimethylolpropane, pentaerythritol, mannitol, D-glucitol (sorbitol), or glycerol. These are acyclic alcohols containing three or more hydroxyl (-OH) groups, which are not otherwise specifically listed within Chapter 29. The classification hinges on the absence of specific identity and the presence of multiple hydroxyl groups on an acyclic carbon chain.

Distinguishing this category from its siblings is crucial. HTS 2905.41 through 2905.45 provide specific classifications for well-known polyhydric alcohols with defined chemical structures and common industrial uses. HTS 2905.49 serves as a residual category for polyols that lack these specific designations, often due to their less common nature or unique structural variations.

The subcategories within 2905.49 further refine the classification of these less common polyhydric alcohols. Subheading 2905.49.10.00 specifically covers triols and tetrols, which are polyhydric alcohols with precisely three or four hydroxyl groups, respectively, that are not otherwise specified. Subheading 2905.49.20.00 addresses esters of glycerol that are formed with acids found in heading 2904. The residual "Other" category, as indicated by the parent node, accounts for any remaining polyhydric alcohols that do not fit these more specific subdivisions.