2906 - Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:

HTS Code 2906 encompasses cyclic alcohols, which are organic compounds characterized by a ring structure of carbon atoms, and their derivatives. These derivatives are specifically modified through halogenation (addition of halogens like chlorine or bromine), sulfonation (addition of sulfonic acid groups), nitration (addition of nitro groups), or nitrosation (addition of nitroso groups). This chapter focuses on organic chemicals, and within this broad scope, 2906 specifically deals with alcohols where the hydroxyl group is attached to a carbon atom within a ring system.

Unlike sibling categories within Chapter 29 that may cover acyclic alcohols, ethers, or other functional groups, HTS 2906 is strictly limited to cyclic alcohols and their modified forms. This distinction is crucial for accurate classification, as the presence of a ring structure and the specific functional group (alcohol) are defining characteristics. For instance, simple aliphatic alcohols would fall under a different HTS code, highlighting the importance of structural analysis in tariff classification.

The subcategories within HTS 2906 further refine the classification based on the nature of the cyclic structure and the presence of other functional groups. "Cyclanic, cyclenic or cycloterpenic" covers alcohols derived from saturated or unsaturated alicyclic rings, including those with terpene structures. "Aromatic" specifically addresses alcohols where the hydroxyl group is attached to a carbon atom of an aromatic ring system (phenols are a key example here). Finally, "III. PHENOLS, PHENOL-ALCOHOLS AND THEIR HALOGENATED, SULFONATED, NITRATED OR NITROSATED DERIVATIVES" provides a more granular breakdown for these specific aromatic alcohol types and their modified forms, allowing for precise identification of highly specialized chemical compounds.