2926.90.05.00 - 2-Amino-4-chlorobenzonitrile (5-Chloro-2- cyanoaniline); 2-Amino-5-chlorobenzonitrile; 4-Amino-2-chlorobenzonitrile; (Cyanoethyl)(hydroxyethyl)-m-toluidine;p-Cyanophenyl acetate; Phthalonitrile; and Tetrachloro-3-cyanobenzoic acid, methyl ester

This HTS category, 2926.90.05.00, specifically classifies a group of aromatic nitrile-function compounds that do not fall under more specific subheadings within the "Other" aromatic nitrile category. The listed items, including various substituted benzonitriles like 2-Amino-4-chlorobenzonitrile and 4-Amino-2-chlorobenzonitrile, as well as compounds such as phthalonitrile and a specific methyl ester of tetrachloro-3-cyanobenzoic acid, are characterized by the presence of a cyano group (-CN) attached to an aromatic ring system, or related structures with distinct functional group combinations.

Distinguishing this category from its siblings involves careful examination of the specific substituents and structural arrangements of the nitrile compounds. For instance, 2-Cyano-4-nitroaniline, classified under 2926.90.01.00, is differentiated by the presence of a nitro group alongside the amino and cyano functionalities. Similarly, other sibling entries like benzonitrile (2926.90.08.00) and dichlorobenzonitriles (e.g., p-Chlorobenzonitrile under 2926.90.14.00) represent simpler or more narrowly defined aromatic nitriles. The compound classified here is broader, encompassing several distinct chemical entities that share the aromatic nitrile characteristic but do not fit into the more precisely defined sibling subheadings.

As this node is a leaf node within the HTS classification structure, there are no further subcategories to introduce. Classification into 2926.90.05.00 is final for the specified chemicals, meaning that if a substance matches the description and is not covered by a more specific heading or subheading, it will be classified here. The key classification criteria revolve around the presence of the nitrile group in conjunction with an aromatic structure, coupled with the absence of more specific defining characteristics addressed in other HTS provisions at the same or higher levels.