9902.08.22 - Sodium 4-[(3-acetamidophenyl)amino]-1-amino-9,10- dioxo-9,10-dihydro-2-anthracenesulfonate (Acid blue 324) (CAS No. 70571-81-2) (provided for in subheading 3204.12.45)

This HTS code, 9902.08.22, specifically classifies Sodium 4-[(3-acetamidophenyl)amino]-1-amino-9,10-dioxo-9,10-dihydro-2-anthracenesulfonate, also known as Acid blue 324. This is a synthetic organic dyestuff, identified by its CAS number 70571-81-2. The classification within Chapter 99 signifies that this item is subject to special provisions, typically temporary modifications or additional import restrictions, rather than its standard classification under Chapter 32 (Dyes and pigments). The parenthetical note "provided for in subheading 3204.12.45" indicates its underlying classification in the standard HTS structure, but it is being temporarily managed under this Chapter 99 provision.

Given that this is a leaf node, there are no further subcategories to explore under this specific HTS code. Therefore, classification under 9902.08.22 relies entirely on the precise chemical identity and the specific temporary trade provisions that necessitate its placement here. It is crucial to recognize that this is not a general classification for all dyes or even all anthraquinone-based dyes, but rather for this particular chemical compound when it is subject to the special import rules associated with Chapter 99. Any entry of Acid blue 324 would need to carefully consider the specific proclamations and legislation governing this HTS code at the time of import.