2933.79.40.00 - 12-Aminododecanoic acid lactam

This HTS classification, 2933.79.40.00, specifically covers 12-Aminododecanoic acid lactam. Lactams are cyclic amides, and this particular compound is characterized by its twelve-carbon chain and the presence of the lactam ring formed from the aminododecanoic acid. Its classification within the broader category of "Other lactams" signifies that it does not fall under more specifically enumerated lactam subheadings within the Harmonized System.

This heading differentiates 12-Aminododecanoic acid lactam from its sibling categories by its unique chemical structure and composition. For instance, 2933.79.20.00 encompasses N-Methyl-2-pyrrolidone and 2-Pyrrolidone, which are simpler, five-membered ring lactams. Similarly, 2933.79.30.00 is reserved for the monomeric form of N-Vinyl-2-pyrrolidone, a different vinyl-substituted lactam. The "Other" subheading at 2933.79.85.00 is a residual category for lactams not otherwise specified, making 2933.79.40.00 the precise designation for 12-Aminododecanoic acid lactam.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. The classification of 12-Aminododecanoic acid lactam is therefore definitive at this level. Import and export professionals should rely on the precise chemical name and structure to ensure accurate classification, particularly when distinguishing it from other lactams that may have similar applications or general appearances but differ in molecular structure and thus tariff treatment.