2903.49.00.00 - Other

This HTS category, "Other" under 2903.49.00.00, serves as a residual classification for saturated fluorinated derivatives of acyclic hydrocarbons that are not specifically enumerated in preceding subheadings. It encompasses a diverse range of compounds primarily characterized by the presence of fluorine atoms bonded to carbon atoms within an acyclic structure. These substances may find application in various industrial processes, including as refrigerants, blowing agents, or intermediates in the synthesis of other chemicals.

This "Other" category is distinct from its sibling subheadings, which precisely identify specific fluorinated hydrocarbons such as trifluoromethane (HFC-23), difluoromethane (HFC-32), and tetrafluoroethanes (HFC-134a/134). The key differentiator lies in the chemical structure and fluorine substitution pattern. If a saturated fluorinated acyclic hydrocarbon does not precisely match the chemical name or formula of a preceding sibling, it will generally fall into this "Other" residual category.

As this is a leaf node, there are no further subcategories. Classification into this subheading is determined by the absence of a more specific enumeration in the Harmonized Tariff Schedule. Importers and exporters must carefully examine the chemical composition and structure of their goods to confirm that they do not fit into any of the more precisely defined preceding subheadings before classifying them under 2903.49.00.00.