9902.08.27 - Acid Blue 80 (disodium 3,3'-[(9,10-dioxo-9,10-dihydroanthra- cene-1,4-diyl)diimino]bis(2,4,6-trimethyl- benzenesulfonate) (CAS No. 4474-24-2) (provided for in subheading 3204.12.50)

This HTS category, 9902.08.27, specifically covers Acid Blue 80, also identified by its chemical name (disodium 3,3'-[(9,10-dioxo-9,10-dihydroanthracene-1,4-diyl)diimino]bis(2,4,6-trimethylbenzenesulfonate)) and CAS number 4474-24-2. This particular classification is a temporary modification or restriction related to trade agreements or Section 22 of the Agricultural Adjustment Act, and it directs importers to the permanent classification of this substance within subheading 3204.12.50.

Unlike the broad array of sibling categories found at the top level of the HTS, such as live animals (Chapters 01), this node pertains to a specific chemical dye, not living organisms. Its placement within Chapter 99 signifies its status as subject to special provisions rather than its inherent material composition as would be classified in chapters like 32 (Dyes and Pigments).

As this is a leaf node, there are no further subcategories to explore under 9902.08.27. The classification is definitive for Acid Blue 80 when imported under these special circumstances. Importers should note that while the permanent classification is in 3204.12.50, the 9902.08.27 code indicates that specific temporary legislation or restrictions apply to its importation.