9902.03.50 - C9-C15 Perfluorocarbon Amines (CAS No. 86508-42-1) (provided for in subheading 2921.19.61)

This HTS classification, 9902.03.50, specifically designates C9-C15 perfluorocarbon amines (CAS No. 86508-42-1). These are organic compounds where a hydrocarbon chain has been completely replaced by fluorine atoms, and to which an amine group (-NH2, -NHR, or -NR2) is attached. The parenthetical reference to subheading 2921.19.61 indicates that, under normal tariff provisions, these chemicals would typically be classified within Chapter 29, specifically under aliphatic amines. However, their inclusion in Chapter 99 signifies a special classification due to temporary legislation, trade agreement modifications, or specific import restrictions.

As a leaf node within Chapter 99, this category does not have further subdivisions. Its purpose is to provide a distinct entry for these specific perfluorocarbon amines, likely due to particular policy considerations or temporary tariff treatments. Unlike the broad categories of live animals found at the beginning of the HTS (e.g., 0101, 0102), this entry pertains to highly specialized industrial chemicals. The "99" series of HTS codes is reserved for temporary provisions and is distinct from the core chapters that systematically enumerate goods across all sectors. Therefore, the focus here is on the unique regulatory or trade status of these particular perfluorocarbon amines rather than their inherent chemical properties in isolation.