2901.24.20.00 - Having a purity of 95 percent or more by weight

This HTS classification covers isoprene with a high degree of purity, specifically when its weight percentage is 95% or more. Isoprene, a volatile organic compound, is a key building block in the petrochemical industry, primarily used as a monomer in the production of synthetic rubber, such as polyisoprene, which mimics natural rubber. It is also a precursor for various resins, adhesives, and other specialty chemicals. The critical factor for classification under this heading is the specified purity level.

This specific subcategory differentiates itself from its sibling, 2901.24.50.00 "Other," by the stringent purity requirement. While both fall under the broader category of isoprene, this heading exclusively captures isoprene that meets the 95% or greater purity threshold. The sibling category would encompass isoprene that does not meet this purity standard or is intended for uses where such high purity is not the defining characteristic for classification.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification decisions for goods falling under this code will therefore hinge on confirming the purity of the isoprene through laboratory analysis or supplier documentation, ensuring it meets the 95% or more by weight criterion. This detailed specification is crucial for accurate tariff assessment and compliance in international trade.