9902.03.55 - 4-Chloro-2-nitroaniline (CAS No. 89-63-4) (provided for in subheading 2921.42.55)

This HTS category, 9902.03.55, specifically covers 4-Chloro-2-nitroaniline (CAS No. 89-63-4). This compound is a chemical substance, typically used as an intermediate in the synthesis of dyes, pigments, pharmaceuticals, and other organic chemicals. Its classification under Chapter 99 signifies that it is subject to temporary legislation, modifications, or additional import restrictions, as proclaimed under trade agreements or specific legislative provisions like Section 22 of the Agricultural Adjustment Act.

Unlike the broader categories of live animals found in Chapters 01, or the diverse range of chemical compounds classified in Chapters 28 and 29, this specific entry targets a single, precisely identified chemical substance. The "provided for in subheading 2921.42.55" note indicates that while the substance itself is chemically defined, its import is being managed under a special provision due to its specific application or trade policy considerations.

As this is a leaf node within Chapter 99, there are no further subdivisions. Classification at this level is precise and solely dependent on the accurate identification of the imported good as 4-Chloro-2-nitroaniline meeting the criteria outlined in the temporary legislation or special provision associated with this code. Importers must ensure the product exactly matches the chemical identity and CAS number to benefit from or comply with the terms of this specific tariff provision.