2905.19.90.20 - Hexyl alcohol and isomers thereof

This HTS category, 2905.19.90.20, specifically covers hexyl alcohol and its various isomers. Hexyl alcohol is a saturated monohydric acyclic alcohol containing six carbon atoms. The term "isomers thereof" indicates that any chemical compound with the same molecular formula as hexyl alcohol but a different structural arrangement, and which also fits the broader definition of saturated monohydric alcohols, will be classified here. These compounds are typically used as solvents, intermediates in the synthesis of other chemicals, or as components in fragrances and flavorings.

This classification is distinct from its sibling categories by its specific carbon chain length. For instance, 2905.19.90.10 covers decyl alcohol, which has a longer ten-carbon chain, and 2905.19.90.05 specifically classifies 3,3-Dimethylbutan-2-ol (pinacolyl alcohol), a branched isomer of hexanol with a particular structural designation. Category 2905.19.90.90 serves as a residual category for other saturated monohydric alcohols that do not fall under the more specific subheadings.

As a leaf node, category 2905.19.90.20 does not have further subdivisions. Classification within this subheading relies on identifying the chemical structure as a hexyl alcohol or one of its isomers, distinguishing it from alcohols with different carbon counts or specific named branched structures found in sibling categories. The primary differentiating factor is the six-carbon backbone and the presence of a single hydroxyl group.