2904.20.50.00 - Other

This HTS category, HTS 2904.20.50.00, encompasses sulfonated, nitrated, or nitrosated derivatives of hydrocarbons, specifically those containing only nitro or only nitroso groups, that do not fall into the more specific preceding subheadings. This "Other" category serves as a residual classification for these types of compounds when they are not aromatic in nature or do not possess other specific characteristics that would place them elsewhere within the broader framework of hydrocarbon derivatives. The focus is on compounds where the characteristic functional groups are exclusively nitro (-NO2) or nitroso (-NO), and the hydrocarbon backbone is not aromatic.

The key distinction for this category lies in its exclusion of aromatic derivatives. Sibling categories, such as those for aromatic compounds within this chapter, would cover similar nitrated or nitrosated hydrocarbons if they possessed an aromatic ring structure. Therefore, the classification under HTS 2904.20.50.00 is determined by the absence of aromaticity in the hydrocarbon moiety, alongside the presence of only nitro or nitroso functional groups.

As a leaf node, this classification does not have further subdivisions. Consequently, the classification of specific products within this heading relies on a thorough analysis of their chemical structure, confirming the presence of nitro or nitroso groups and the non-aromatic nature of the hydrocarbon base. Examples might include aliphatic nitroalkanes or nitroalkenes that are not otherwise specifically enumerated. The absence of further subcategories emphasizes the importance of detailed chemical analysis to ensure accurate classification within this residual category.