2914.79.30.00 - Anthraquinone disulfonic acid, sodium salt; and 4-(3,4-Dichlorophenyl)-1-tetralone

This HTS classification covers specific aromatic halogenated, sulfonated, nitrated, or nitrosated derivatives of ketones and quinones. The key products within this category are Anthraquinone disulfonic acid, sodium salt, and 4-(3,4-Dichlorophenyl)-1-tetralone. These substances are characterized by the presence of halogen atoms (like chlorine) or sulfonic acid groups attached to an aromatic ring structure, specifically within a quinone or tetralone framework. Their classification here signifies a more specific chemical structure than broader categories, focusing on these precise molecular arrangements.

Distinguishing this category from its sibling, 2914.79.10.00, is crucial. While both fall under aromatic halogenated, sulfonated, nitrated, or nitrosated derivatives, 2914.79.10.00 specifically enumerates 2,3-Dichloro-1,4-naphthoquinone, certain dinitroanthraquinones, and artificial musks like Musk ketone. Therefore, the current classification at 2914.79.30.00 is reserved for those aromatic derivatives that do not fit the more detailed descriptions of the 2914.79.10.00 category. The catch-all "Other" at 2914.79.40.00 would apply to any remaining aromatic derivatives not otherwise specified.

As this is a leaf node, there are no further subcategories. The classification concludes at this level with the explicit enumeration of Anthraquinone disulfonic acid, sodium salt, and 4-(3,4-Dichlorophenyl)-1-tetralone. For classification purposes, precise identification of these specific chemical entities is required. The presence and position of the chlorine atoms on the phenyl ring and the disulfonic acid groups on the anthraquinone are critical for correct duty assessment and trade compliance.