9902.03.40 - Dimethyl phosphite (CAS No. 868-85-9) (provided for in subheading 2920.21.00)

This HTS classification, 9902.03.40, covers Dimethyl phosphite (CAS No. 868-85-9). Importantly, this entry is designated as "provided for in subheading 2920.21.00," indicating that while it falls under temporary legislation within Chapter 99, its primary classification resides within the chemical chapters. This specific provision likely relates to temporary trade program modifications or import restrictions that apply to this particular chemical compound.

As this is a leaf node within Chapter 99, there are no further subcategories to detail. Its function within the HTS is to delineate specific temporary treatment for Dimethyl phosphite, distinct from the general classifications of other goods. The "provided for in subheading 2920.21.00" reference is crucial, as it guides users to the underlying permanent classification where the commodity is typically found, but highlights a unique, temporary aspect necessitating its presence under Chapter 99.