2921.30.50.00 - Other

This HTS category, 2921.30.50.00, encompasses "Other" cyclanic, cyclenic, or cycloterpenic mono- or polyamines, and their derivatives; as well as their salts. This classification is specifically for compounds that contain both cyclic hydrocarbon structures (like cyclohexane or cyclopentane rings) and amine functional groups (containing nitrogen). The "Other" designation signifies that it captures those amines within this broader family that do not fall into more specific, preceding subheadings.

It's crucial to distinguish this category from its sibling. The sibling category, ": Derived in whole or in part from any aromatic compound:", specifically addresses amines where the cyclic structure is aromatic (e.g., benzene rings). In contrast, this category is reserved for amines where the cyclic portion is alicyclic, meaning it is saturated (like cycloparaffins) or unsaturated but not aromatic (like cycloolefins). Therefore, the presence or absence of aromaticity in the cyclic component is the key differentiator.

As this is a leaf node, there are no further subdivisions. Classification under this heading relies on definitively identifying the compound as a mono- or polyamine with a cyclanic, cyclenic, or cycloterpenic structure, and ensuring it is not a derivative of an aromatic compound. The salts of these amines are also included, requiring the identification of the amine base and the counter-ion.