2909.30.07.00 - Decabromodiphenyl oxide; and Octabromodiphenyl oxide

This HTS category specifically covers decabromodiphenyl oxide and octabromodiphenyl oxide. These are brominated diphenyl ethers, characterized by a high degree of bromine substitution on the phenyl rings. Their primary industrial application is as flame retardants, incorporated into plastics, textiles, and electronic components to enhance fire safety. The presence and quantity of bromine atoms are key distinguishing features for classification within this group.

Distinguishing this category from its siblings, 2909.30.05.00 includes specific chlorinated nitroanisoles and diphenyl ethers, while 2909.30.09.00 enumerates other brominated aromatic ethers such as bis(tribromophenoxy)ethane and pentabromodiphenyl oxide. The "Other" category serves as a residual catch-all for aromatic ethers and their derivatives that do not fall under the specifically enumerated subheadings. The current node, 2909.30.07.00, is precisely defined by its coverage of decabromodiphenyl oxide and octabromodiphenyl oxide, differentiating it through the exact chemical structure and the specific number of bromine atoms present.

As this is a leaf node within the HTS, there are no further subcategories to introduce. Classification to this specific subheading is definitive for the identified compounds, decabromodiphenyl oxide and octabromodiphenyl oxide, based on their chemical identity. Practical classification relies on identifying these specific chemical compounds, often confirmed through analytical documentation and product specifications demonstrating their composition.