2921.44.05.00 - 4,4'-Bis (α,α-dimethylbenzyl) diphenylamine; andN-Nitrosodiphenylamine

This HTS category, 2921.44.05.00, specifically covers certain aromatic amine compounds. It includes 4,4'-Bis (α,α-dimethylbenzyl) diphenylamine and N-Nitrosodiphenylamine. These are complex organic chemicals that function as derivatives of diphenylamine, characterized by their specific structural substitutions. The presence of the bis(α,α-dimethylbenzyl) groups or the nitroso functional group are key identifying features for classification within this sub-heading.

This classification is distinct from its sibling category, 2921.44.10.00, which is designated for Nitrodiphenylamine. While both relate to diphenylamine derivatives, the sibling category is limited to compounds where a nitro group (-NO2) is directly attached to the diphenylamine structure. In contrast, 2921.44.05.00 covers diphenylamine derivatives with different or additional functionalizations, such as the bulky bis(α,α-dimethylbenzyl) substituents or the nitroso group (-N=O).

As this is a leaf node within the HTS structure, there are no further subcategories. Classification under 2921.44.05.00 is therefore definitive for the specified compounds. Importers and exporters should carefully examine the chemical identity and structure of their goods to ensure accurate classification, relying on the precise naming convention and the absence of nitro group substitution to distinguish from the nitrodiphenylamine heading.