9902.03.05 - Terephthaloyl chloride (CAS No. 100-20-9) (provided for in subheading 2917.39.70)

This HTS category, 9902.03.05, specifically addresses Terephthaloyl chloride, identified by CAS No. 100-20-9. This chemical compound is a significant intermediate used in the production of various polymers, most notably polyethylene terephthalate (PET) and polyamides. Its classification within Chapter 99 signifies a temporary tariff provision, meaning its duty rate may differ from its permanent classification under Chapter 29.

Unlike its numerous sibling categories which span a vast array of live animals and their products, this node focuses solely on a specific organic chemical. The "provided for in subheading 2917.39.70" notation indicates that while it's temporarily classified here, its permanent home within the HTS is under subheading 2917.39.70, which covers other dicarboxylic acids, their anhydrides, halides, peroxides, peracids, and their halogenated, sulfonated, nitrated, or nitrosated derivatives. This temporary provision likely reflects specific trade policy or import management objectives.

As a leaf node, this category has no further subdivisions. Therefore, for classification purposes, it is crucial to confirm that the imported material precisely matches the chemical identity of Terephthaloyl chloride (CAS No. 100-20-9). Verification may involve reviewing product specifications, chemical analyses, and Safety Data Sheets (SDS) to ensure accurate adherence to the temporary classification and its associated duties.