9902.08.55 - Reactive Orange 131 (2,4-diamino-3-[4-(2-sulfoxyethylsulfonyl)-phenylazo] -5-[4-(2-sulfoxyethylsulfonyl)-2-sulfophenylazo]- benzenesulfonic acid, potassium sodium salt) (CAS No. 187026-95-5) (provided for in 3204.16.30)

This HTS classification, 9902.08.55, pertains to a specific chemical compound identified as Reactive Orange 131. The detailed chemical name and CAS number are provided for precise identification. This classification falls under the temporary legislation and modification provisions of Chapter 99, indicating it is subject to specific, potentially time-limited, trade and import regulations. It is important to note that the "provided for in 3204.16.30" parenthetical indicates that the underlying good is typically classified under that heading, but this specific 9902 code imposes additional or modified treatment.

As this classification is within Section XXII and Chapter 99, it is distinct from the broad commodity classifications found in earlier chapters (e.g., Chapter 01 covering live animals). Unlike sibling categories that might represent different types of dyes or pigments under a standard heading, 9902.08.55 addresses a very particular chemical with specific tariff treatment. Its presence in Chapter 99 signifies that it is not classified based on its inherent physical or chemical properties alone for standard duty rates, but rather due to special legislative or trade agreement provisions affecting its import.

Since HTS code 9902.08.55 is a leaf node, it does not have further subcategories. Classification under this code is definitive for Reactive Orange 131 when subject to the specific temporary provisions outlined. Importers must consult the relevant trade agreements, proclamations, and section 22 regulations to understand the full implications and requirements associated with this classification, as these are the primary drivers for its inclusion in Chapter 99.