9902.08.20 - Acid Red 182 (sodium [4-(hydroxy-κO)-3-{[2- (hydroxy-κO)-1-naphthyl]diazenyl}benzenesulfon- amidato(2-)][4-hydroxy-3-{[2-(hydroxy-κO)-1-naphthyl]diazenyl}ben- zenesulfonamidato(2-)]cobaltate(1-)) (CAS No. 58302-43-5) (provided for in subheading 3204.12.45)

This HTS category, 9902.08.20, specifically covers Acid Red 182, a complex cobaltate compound identified by its Chemical Abstracts Service (CAS) number 58302-43-5. This particular dye, a sodium salt complex, is a specialty chemical designed for coloring applications. Its inclusion in Chapter 99 of the Harmonized Tariff Schedule indicates that it is subject to temporary legislation or special import restrictions, overriding its standard classification under Chapter 32.

Given that this is a leaf node, there are no further subdivisions. Its distinction from sibling categories at the same level lies precisely in its specific chemical identity and its placement within the temporary/special provisions of Chapter 99. Unlike the broad categories of live animals or general chemical products found elsewhere in the HTS, this HTS code is highly specific, addressing a single chemical entity for purposes of unique trade management or regulatory oversight. The reference to subheading 3204.12.45 within its description highlights its typical classification for dyes and pigments before being placed under the special provisions of Chapter 99.