2927.00.06.00 - p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)

This HTS category, 2927.00.06.00, specifically classifies two distinct organic chemical compounds: p-Aminoazobenzenedisulfonic acid and Diazoaminobenzene (also known as 1,3-Diphenyltriazene). These compounds are characterized by the presence of the azo (-N=N-) or diazo (-N≡N⁺) functional groups within their molecular structure. Their applications often lie in the synthesis of dyes, pigments, and as intermediates in various chemical processes.

It is crucial to distinguish this category from its siblings. For instance, HTS code 2927.00.03.00 addresses a specific salt form, the monosodium salt of 4-Aminoazobenzenedisulfonic acid, which is a derivative but not the free acid itself as classified here. Other sibling entries cover entirely different compounds, such as 1,1'-Azobisformamide (a blowing agent) and complex esterified naphthalenesulfonic acid derivatives used in specialized applications, highlighting the specificity required at this level of the tariff schedule.

As this HTS code represents a leaf node, there are no further subcategories within this classification. Therefore, the classification decision for goods falling under 2927.00.06.00 hinges directly on their identity as either p-Aminoazobenzenedisulfonic acid or Diazoaminobenzene. Importers and exporters must ensure that the chemical identity of the imported or exported material precisely matches the descriptions provided in the tariff schedule to ensure accurate classification and avoid discrepancies.