9902.09.92 - Mixtures of (2RS, 3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl) pentan-3-ol (Paclobutrazol) (CAS No. 76738-62-0) and application adjuvants (provided for in subheading 3808.93.15)

This HTS category, 9902.09.92, specifically covers mixtures containing Paclobutrazol, a plant growth regulator, when formulated with application adjuvants. Paclobutrazol itself is chemically defined as (2RS, 3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl) pentan-3-ol (CAS No. 76738-62-0). The presence of application adjuvants, which are typically substances that enhance the effectiveness of pesticides or plant growth regulators, is a key defining characteristic for this classification. These adjuvants are often found under subheading 3808.93.15, indicating their functional role in the product's application.

Distinguishing this category from its siblings within Chapter 99 involves understanding the temporary and specialized nature of Chapter 99 itself. While other HTS categories at the root level, such as those in Chapter 01 covering live animals, represent fundamental commodity classifications, Chapter 99 deals with specific trade policy measures, temporary modifications, or restrictions related to agricultural adjustments. Therefore, 9902.09.92 is not about the inherent nature of the chemical itself but rather a specific classification for this particular mixture under a temporary trade provision, likely related to import controls or tariff adjustments affecting agricultural inputs.

As this node is a leaf node, there are no further subcategories to introduce. Classification within 9902.09.92 is definitive for eligible mixtures meeting the specified chemical composition and the inclusion of application adjuvants. Importers should ensure that the product precisely matches the chemical description of Paclobutrazol and is presented as a mixture with these specific types of adjuvants to correctly apply this provision.