9902.03.88 - 3,3'-Dichlorobenzidine dihydrochloride (3,3'-Dichloro-4,4'-biphenyldiamine dihydrochloride) (CAS No. 612-83-9) (provided for in subheading 2921.59.80)

This HTS category, 9902.03.88, specifically covers 3,3'-Dichlorobenzidine dihydrochloride, also known as 3,3'-Dichloro-4,4'-biphenyldiamine dihydrochloride. This chemical compound, identified by CAS Number 612-83-9, falls under special classification provisions due to specific import restrictions or temporary measures. It is important to note that while this compound might otherwise be classified under subheading 2921.59.80, its inclusion here signifies a distinct tariff treatment governed by Chapter 99 of the HTS.

Distinguishing this category from its siblings within Chapter 99 requires an understanding of the specific trade agreements or legislative actions that created these temporary modifications. Chapter 99 encompasses a wide array of special provisions, including those enacted under Section 22 of the Agricultural Adjustment Act, as amended, or as temporary modifications proclaimed pursuant to trade agreements legislation. Therefore, 9902.03.88 is distinct from other potential HTS codes within Chapter 99 that might address different commodities or import policies.

As this is a leaf node, there are no further subcategories. Classification under 9902.03.88 is definitive for the specified chemical compound when subject to the conditions outlined in Chapter 99. Importers and exporters must ensure that the goods precisely match the chemical description and CAS number to correctly apply this tariff heading. Compliance with any associated documentation or prior authorization requirements linked to these special classification provisions is paramount.