2908.99.25.00 - Other nitrophenols

This HTS category, 2908.99.25.00, specifically encompasses "Other nitrophenols" that do not fall under more precisely defined subcategories. It represents a residual classification for nitrophenols where the position of the nitro group and the specific phenolic structure does not align with the more specifically enumerated sibling categories. These are organic compounds characterized by the presence of both a hydroxyl group attached to an aromatic ring (phenol) and one or more nitro groups.

Distinguishing this category from its siblings is crucial. For instance, while 2908.99.20.00 specifically covers *p*-nitrophenol, and 2908.99.33.00 addresses certain dinitro-o-cresols and 4-nitro-m-cresol, this category serves as a catch-all for nitrophenols not explicitly listed. Similarly, 2908.99.40.00 is dedicated to dinitrobutylphenol and its salts. Therefore, any nitrophenol that does not meet the specific structural or substituent criteria of these other codes would likely be classified under this residual "Other" designation.

As a leaf node, this HTS classification has no further subcategories. Classification into 2908.99.25.00 relies on the definitive absence of specific structural identifiers that would place the nitrophenol into a more granular HTS code. Importers and exporters should carefully analyze the chemical structure and the presence of other substituents to ensure accurate classification, particularly when dealing with less common nitrophenol derivatives.