2907.19 - Other:

This HTS category, 2907.19, encompasses monophenols that do not fall under the more specific subheadings of 2907.11 (Phenol), 2907.12 (Cresols), 2907.13 (Octylphenol, nonylphenol), or 2907.15 (Naphthols). It serves as a residual category for various other monophenolic compounds and their salts. The primary defining characteristic of these substances is the presence of a single hydroxyl group directly attached to an aromatic ring.

Distinguishing this category from its siblings is crucial for accurate classification. While 2907.11, 2907.12, 2907.13, and 2907.15 are reserved for clearly defined, common monophenols and their derivatives, 2907.19 accounts for less frequently encountered or more complex monophenolic structures. Therefore, if a monophenol does not fit neatly into the preceding sibling categories based on its chemical structure, 2907.19 becomes the appropriate classification.

The subcategories within 2907.19 further refine the classification of these "other" monophenols. Alkylcresols (2907.19.10.00) and alkylphenols (2907.19.20.00) represent monophenols where alkyl chains are attached to the aromatic ring, providing specific definitions for these common variations. Thymol (2907.19.40.00) is a distinct monophenol with a characteristic aromatic structure and scent, also classified separately for clarity. The remaining "Other:" within this level would capture any remaining monophenolic compounds not specifically listed under the preceding subheadings or siblings.