3204.15.30.00 - Solubilized vat blue 5; Solubilized vat orange 1; Solubilized vat yellow 7, 45, 47; Vat black 19, 30, 31; Vat blue 5, 16, 19, 21, 66, 67; Vat brown 33, 50, 57; Vat green 28, 48; Vat orange 5, 13; Vat red 10, 15, 32, 41; and Vat yellow 46

This HTS classification covers a specific range of vat dyes, identified by their "Colour Index" (C.I.) names and numbers, as well as their solubilized forms. These are complex organic compounds primarily used as colorants in the textile industry and other applications requiring high fastness properties. The specific dyes included, such as Solubilized vat blue 5, Solubilized vat orange 1, Vat black 19, Vat blue 5, Vat brown 33, Vat green 28, Vat orange 5, Vat red 10, and Vat yellow 46, are recognized by their distinct chemical structures and dyeing characteristics.

This category is distinguished from its sibling categories by the precise listing of vat dyes it encompasses. For example, it differs from 3204.15.10.00, which specifically covers "Vat blue 1 (synthetic indigo)," and from 3204.15.20.00, which enumerates a different set of vat brown, orange, and violet dyes. Similarly, it is distinct from 3204.15.25.00, which is reserved for "Vat red 1," and 3204.15.35.00, which lists other specific solubilized vat orange, vat blue, vat red, and vat yellow dyes. The residual "Other" category at this level would capture any vat dyes or preparations not specifically enumerated in the preceding subheadings.

As a leaf node, this classification does not have further subcategories. Therefore, its scope is precisely defined by the list of vat dyes and solubilized vat dyes provided in its description. Classification into this code relies on identifying the precise C.I. name and number of the vat dye in question and confirming it is not more specifically classified elsewhere within the "Vat dyes" heading.