9902.03.64 - 3-{[Ethyl(phenyl)amino]methyl}benzenesulfonic acid (CAS No. 101-11-1) (provided for in 2921.42.90)

This HTS code, 9902.03.64, specifically covers the chemical compound 3-{[Ethyl(phenyl)amino]methyl}benzenesulfonic acid, also identified by CAS Number 101-11-1. The provision for this substance within Chapter 99 indicates it is subject to temporary legislation, trade agreement modifications, or additional import restrictions enacted under specific legislative provisions, such as Section 22 of the Agricultural Adjustment Act. Its classification here supersedes its potential classification under other chapters, such as Chapter 29 (Organic chemicals), where it might otherwise be found under 2921.42.90, denoting aromatic amines.

As this is a leaf node within Chapter 99, there are no further subdivisions under this specific HTS code. The primary characteristic that distinguishes this entry is its explicit designation for special or temporary tariff treatment. Unlike the primary agricultural or industrial goods found in the earlier chapters (e.g., Chapter 01 for live animals), this code pertains to a specific chemical entity that is managed through distinct trade policy measures. Therefore, the focus for classification under 9902.03.64 is solely on the identity of the substance and the applicability of the associated temporary provisions, rather than on broader product categories or functional uses.