2911.00.50.00 - Other

This HTS category, under the heading 2911.00, encompasses "Other" acetals and hemiacetals, along with their halogenated, sulfonated, nitrated, or nitrosated derivatives, that do not fit into more specific subheadings. These compounds are characterized by the presence of both an acetal or hemiacetal functional group and at least one other oxygen-containing functional group, such as an alcohol, ether, or ester. The classification here serves as a residual category for acetals and hemiacetals that possess additional chemical complexity beyond simple acetal formation.

Distinct from the specific listing of 1,1-Bis(1-methylethoxy)cyclohexane (2911.00.10.00), this "Other" category applies to a broad range of related chemical structures. While the sibling entry provides a precise example, this subheading is for those acetals and hemiacetals with diverse substituent groups or variations in their core structure that are not explicitly enumerated elsewhere within the 2911.00 heading. Its purpose is to ensure comprehensive coverage of this chemical family within the tariff schedule.

As this node is a leaf node within the HTS structure, there are no further subcategories to introduce. Classification into 2911.00.50.00 is determined by the absence of a more specific HTS classification for a given acetal or hemiacetal derivative that also possesses additional oxygen-containing functional groups. Practical classification relies on detailed chemical analysis to identify the presence of the acetal or hemiacetal functionality alongside other oxygenated groups, ensuring accurate duty assessment.