2904.99.08.00 - Other

This HTS category, 2904.99.08.00, encompasses sulfonated, nitrated, or nitrosated derivatives of hydrocarbons that are also halogenated, but do not fall under the more specific "monochloromononitrobenzenes." This "Other" designation signifies a catch-all for such compounds that do not meet the precise definitions of other listed subcategories within 2904.99. The key defining characteristic is the presence of both halogenation and sulfonation, nitration, or nitrosation on a hydrocarbon backbone, excluding specific monochloromononitrobenzene isomers.

It is crucial to differentiate this category from its sibling, 2904.99.04.00, which specifically covers *o*-Nitrochlorobenzene and *p*-Nitrochlorobenzene. Those are defined by the precise positional isomers of nitro and chloro groups on a benzene ring. Category 2904.99.08.00 would include compounds where, for instance, multiple chlorine atoms are present alongside nitro or sulfonic acid groups, or where the halogenation and nitro/nitroso/sulfonic acid groups are not specifically the *ortho* or *para* monochloro-mononitrobenzene arrangement.

As this is a leaf node, there are no further subcategories to introduce. Classification within 2904.99.08.00 relies on a careful analysis of the chemical structure and functional groups present. If a sulfonated, nitrated, or nitrosated hydrocarbon derivative also contains halogens, but does not precisely match the description of monochloromononitrobenzenes, it will likely fall into this residual category. Customs officials will examine the chemical composition to ensure it meets the criteria of halogenation in conjunction with sulfonation, nitration, or nitrosation, while excluding the specifically defined isomers.