9902.10.23 - Isobutyl 3-(diisobutoxy-thiophosphorylsulfanyl)-2-methyl-propanoate) (CAS No. 268567-32-4) (provided for in subheading 3811.29.00)

HTS Code 9902.10.23 specifically classifies Isobutyl 3-(diisobutoxy-thiophosphorylsulfanyl)-2-methyl-propanoate, identified by CAS Number 268567-32-4. This substance is provided for in subheading 3811.29.00, indicating its role as an additive for petroleum products. However, its placement within Chapter 99 signifies that it is subject to temporary legislation, temporary modifications, or additional import restrictions proclaimed under specific trade agreements or statutory provisions. This temporary classification overrides its permanent placement in Chapter 38.

Distinguishing this entry from its sibling categories within Chapter 99 is paramount. Chapter 99 is a broad category encompassing various temporary measures and special provisions. While other codes within Chapter 99 might address temporary import restrictions on agricultural products or other specific goods, 9902.10.23 is uniquely tied to this particular chemical compound and its designated permanent subheading. Its classification is driven by specific proclamations and temporary legislative actions, rather than inherent physical characteristics that define the broad categories found in earlier chapters, such as live animals (e.g., 0101-0105).

As a leaf node within the HTS database, HTS Code 9902.10.23 does not have any further subdivisions. Therefore, the focus for classification purposes is on adhering to the specific conditions and restrictions associated with this temporary provision. Importers must verify current regulatory status and any specific documentation requirements mandated under the temporary legislation that has placed this item under Chapter 99.