9902.04.81 - Isophthalonitrile (1,3-dicyanobenzene) (CAS No. 626-17-5) (as provided for in subheading 2926.90.48)

This HTS category, 9902.04.81, specifically covers Isophthalonitrile (1,3-dicyanobenzene), identified by CAS No. 626-17-5. Its inclusion under Section XXII and Chapter 99 signifies that it is subject to temporary legislation, temporary modifications proclaimed pursuant to trade agreements, or additional import restrictions under Section 22 of the Agricultural Adjustment Act. While its primary classification might otherwise fall under a different HTS chapter (as indicated by its reference to subheading 2926.90.48), this specific code designates it for special customs treatment due to these proclaimed provisions.

As a leaf node, this category does not have further subdivisions. Its purpose is to provide a distinct classification for Isophthalonitrile when specific temporary trade or agricultural regulations apply. Therefore, it is differentiated from the numerous other sibling categories at the HTS database root level, such as live animals (Chapters 01), which are classified based on different fundamental product characteristics and governing customs regulations. The unique aspect of this entry is its dual nature: it identifies a specific chemical compound while simultaneously signaling that its importation is governed by special, time-limited provisions rather than standard permanent tariff schedules.