9902.03.66 - N-Ethyl-N-(2-methyl-2-propenyl)-2,6-dinitro-4-(trifluor- omethyl)benzenamine (Ethalfluralin) (CAS No. 55283-68-6) (provided for in subheading 2921.43.22)

This HTS category, 9902.03.66, represents a specific provision for N-Ethyl-N-(2-methyl-2-propenyl)-2,6-dinitro-4-(trifluoromethyl)benzenamine, also known as Ethalfluralin. This chemical compound, identified by CAS No. 55283-68-6, is provided for under subheading 2921.43.22 and is subject to temporary legislation or import restrictions under Chapter 99. The inclusion of this item within Chapter 99 signifies that its tariff treatment or import requirements may differ from its standard classification under the primary HTS nomenclature due to specific trade agreements or agricultural adjustments.

Given that this is a leaf node, there are no further subcategories. The classification is highly specific to Ethalfluralin and its associated regulatory status under Chapter 99 provisions. Unlike sibling categories which may cover broad classes of live animals or other merchandise, this entry pertains to a particular chemical compound with defined trade and regulatory implications. Its existence here highlights the mechanism within the HTS to manage specific goods through temporary measures, often related to agricultural protection or international trade policy.