9902.06.74 - 2-tert-Butyl-5-(4-tert-butylbenzylthio)-4- chloropyridazin-3(2H)-one (Pyridaben) (CAS No. 96489-71-3) (provided for in subheading 2933.99.22)

This HTS category, 9902.06.74, specifically covers the chemical compound 2-tert-Butyl-5-(4-tert-butylbenzylthio)-4-chloropyridazin-3(2H)-one, also known by its common name, Pyridaben (CAS No. 96489-71-3). While its primary classification for customs purposes is found under subheading 2933.99.22, this Chapter 99 provision acknowledges its specific status within temporary legislation. It is important to note that Chapter 99 of the HTSUSA is reserved for temporary modifications, temporary legislation, and additional import restrictions proclaimed pursuant to specific legislative authorities, such as Section 22 of the Agricultural Adjustment Act.

Unlike the vast array of broader commodity classifications found at the root of the HTS database, such as live animals (Chapters 01), this node represents a highly specific, industrially produced chemical substance. The inclusion of Pyridaben under a Chapter 99 heading signifies a departure from its standard classification and is typically due to specific trade policy measures, quotas, or temporary restrictions that are in effect at the time of import. Therefore, when encountering this classification, professionals must consult the underlying trade agreements and proclamations referenced in Chapter 99 for the precise rules and conditions applicable to its importation.

As this is a leaf node within the Chapter 99 structure, there are no further subcategories that subdivide this particular HTS code. The classification is definitive for the named chemical compound and is governed by the specific temporary provisions associated with its listing. This necessitates careful attention to the effective dates and details of any relevant trade legislation or proclamations to ensure compliance with current import requirements for Pyridaben.