2903.99.10.00 - m-Dichlorobenzene; 1,1-Dichloro-2,2-bis(p-ethylphenyl)ethane; and Trichlorobenzenes

This HTS category, 2903.99.10.00, specifically covers three distinct halogenated aromatic hydrocarbons: m-Dichlorobenzene, 1,1-Dichloro-2,2-bis(p-ethylphenyl)ethane, and Trichlorobenzenes. These compounds are characterized by the presence of chlorine atoms attached to an aromatic ring structure. m-Dichlorobenzene is a disubstituted benzene, while Trichlorobenzenes refer to any of the three isomers of benzene with three chlorine atoms. 1,1-Dichloro-2,2-bis(p-ethylphenyl)ethane is a more complex chlorinated hydrocarbon with both aromatic and ethane moieties. Their primary uses can vary, often including roles as solvents, intermediates in chemical synthesis, or historically in insecticide formulations.

To distinguish this category from its siblings, it is important to note the specific chemical structures and substituent groups. For instance, sibling categories like 2903.99.05.00 and 2903.99.08.00 cover fluorinated aromatic compounds, often incorporating trifluoromethyl groups, which are absent in the substances classified here. Other siblings, such as 2903.99.20.00, focus on simpler chlorinated derivatives like benzyl chloride and benzotrichloride, which have chlorine atoms attached to a methyl group linked to the benzene ring, rather than directly on the ring itself in the manner of dichlorobenzenes and trichlorobenzenes. Pentabromoethylbenzene, also a sibling, features bromine atoms and an ethyl group on the benzene ring.

As a leaf node, HTS category 2903.99.10.00 does not have further subdivisions. Classification at this level relies on the precise identification of the chemical substance itself, matching its structure and nomenclature to the described compounds. Importers must ensure accurate product identification to avoid misclassification, as the specific isomers and degrees of chlorination are critical for determining the correct tariff entry.