3204.19.06.00 - Solvent yellow 43, 44, 85, 172

This HTS category, 3204.19.06.00, specifically covers a select group of synthetic organic solvent dyes, including Solvent yellow 43, 44, 85, and 172. These are coloring materials designed for dissolution in organic solvents and are characterized by their ability to impart color to various materials without chemical reaction with the substrate. Their primary application is in coloring plastics, inks, lacquers, and oils, where solubility in non-aqueous media is essential.

This sub-heading is distinguished from its sibling, 3204.19.11.00, by the specific chemical identity of the solvent dyes it includes. While both fall under the broader classification of "Solvent dyes and preparations based thereon," 3204.19.11.00 enumerates a comprehensive list of other solvent dyes by their common names and Color Index numbers. Therefore, the key differentiator for 3204.19.06.00 is its exclusive coverage of the aforementioned yellow solvent dyes, which are not listed under the sibling entry. As a leaf node in the HTS structure, this category does not have further subdivisions.