9902.06.88 - 4-Bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyr- role-3-carbonitrile (Tralopyril) (CAS No. 122454-29-9) (provided for in subheading 2933.99.22).

This HTS category, 9902.06.88, covers the specific chemical compound Tralopyril, identified by its CAS number 122454-29-9 and chemical name 4-Bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile. This classification is part of Chapter 99, which pertains to temporary legislation and special provisions. The inclusion of this substance within this chapter indicates it is subject to specific temporary modifications or restrictions proclaimed under trade agreements or Section 22 of the Agricultural Adjustment Act, overriding its standard classification within the chemical chapters.

Distinguishing this node from its siblings within Chapter 99 requires understanding the nature of temporary legislation. While other siblings in Chapter 99 might cover different temporary modifications, quotas, or specific trade agreement provisions affecting a broad range of goods, 9902.06.88 is highly specific, isolating a single chemical compound for particular regulatory treatment. Its detailed chemical identification and reference to its provision under a primary subheading (2933.99.22) highlight that this entry is an amendment or exception to standard tariff treatment for this particular substance.

As a leaf node, HTS category 9902.06.88 has no further subdivisions. This means that any importation of Tralopyril will be classified directly under this code, subject to the specific temporary rules or restrictions it represents. Classification at this level necessitates careful review of any proclamations or legislative actions associated with Chapter 99, particularly those referenced in the description, to ensure compliance with any quantitative limits, specific licensing requirements, or duty adjustments that may apply.