2905.14 - Other butanols:

This HTS category, 2905.14, encompasses "Other butanols" that are not specifically enumerated in preceding subheadings. These are saturated monohydric alcohols with a four-carbon chain (butanols) and their isomers. This classification serves as a catch-all for butanols that do not fit into the more specific categories for butan-1-ol (n-butyl alcohol) under 2905.13.

Distinguishing 2905.14 from its sibling categories, it is important to note that methanol, propanols, and octanols, as well as longer-chain alcohols like dodecanol, hexadecanol, and octadecanol, are classified separately. While 2905.13.00.00 specifically covers butan-1-ol, 2905.14 is reserved for the remaining butanol isomers.

The subcategories within 2905.14 further refine the classification of these "other butanols." Notably, 2905.14.10.00 specifically addresses tert-butyl alcohol when it has a purity of less than 99 percent by weight. This highlights the importance of purity as a classification criterion for this particular isomer. The residual category, 2905.14.50, covers all other butanols not otherwise specified, including other isomers of butanol and potentially butanol mixtures meeting the general description.