9902.02.39 - Bis(α,α-dimethylbenzyl) peroxide (dicumyl peroxide) (CAS No. 80-43-3) (provided for in subheading 2909.60.20)

This HTS category, 9902.02.39, specifically classifies Bis(α,α-dimethylbenzyl) peroxide, commonly known as dicumyl peroxide (CAS No. 80-43-3). This chemical compound serves primarily as an organic peroxide initiator, widely utilized in the polymer industry for crosslinking polyethylene and other synthetic rubbers. Its inclusion under Section XXII signifies its designation within temporary legislation and special provisions, indicating potential modifications or restrictions beyond the standard HTS classifications.

Unlike the foundational chapters of the HTS, which categorize goods by their inherent material composition or primary function (e.g., Chapter 29 for organic chemicals), Chapter 99 addresses temporary trade measures. Therefore, this classification for dicumyl peroxide is not based on its chemical structure alone, but rather on its treatment under specific trade policies or agreements. It is crucial to note that while dicumyl peroxide is provided for in subheading 2909.60.20 under the standard chemical classifications, its presence here in Chapter 99 indicates a distinct, often temporary, regulatory or tariff status.

As this is a leaf node, there are no further subcategories within 9902.02.39. Classification under this code is definitive for dicumyl peroxide when subject to the specific temporary legislation or trade provisions outlined in Chapter 99. Importers should carefully consult the accompanying trade agreements and any relevant proclamations to ascertain the precise conditions and duties applicable to this classification.