9902.06.53 - 6-Methyl-4-{[(1E)-pyridin-3-ylmethylene]amino}-4,5- dihydro-1,2,4-triazin-3(2H)-one (Pymetrozine) (CAS No. 123312-89-0) (provided for in subheading 2933.69.60)

This HTS category, 9902.06.53, specifically covers Pymetrozine, a chemical compound identified by CAS Number 123312-89-0 and the chemical name 6-Methyl-4-{[(1E)-pyridin-3-ylmethylene]amino}-4,5-dihydro-1,2,4-triazin-3(2H)-one. Its classification within Chapter 99 signifies that it is subject to temporary legislation, temporary modifications under trade agreements, or additional import restrictions. While the chemical itself is classified here under special provisions, its permanent classification is provided for in subheading 2933.69.60, indicating it is a heterocyclic compound containing nitrogen atoms.

Distinguishing this specific entry from other HTS codes requires understanding its role within the broader tariff system. Unlike the primary HTS chapters that classify goods based on their inherent nature (e.g., live animals in Chapter 01), Chapter 99 serves as a repository for items subject to specific, often temporary, trade regulations. Therefore, 9902.06.53 is not distinguished from sibling categories at this level by inherent product characteristics, but rather by the special regulatory treatment it receives. The "sibling categories" mentioned in the HTS database root, such as live animals, are entirely distinct and fall under completely different tariff chapters and regulatory frameworks.

As a leaf node, this HTS category has no subcategories. This means that once a product meets the criteria for classification under 9902.06.53, it is definitively classified at this specific code. Any further subdivision would typically occur within the permanent classification in Chapter 29, where more granular distinctions of chemical compounds are made. The presence of Pymetrozine under this Chapter 99 code signals that importers must be aware of and comply with any specific proclamations or restrictions associated with this provision at the time of importation.