9902.06.98 - 5-Amino-1,2-dihydro-3H-1,2,4-triazole-3-thione (CAS No.16691-43-3) (provided for in subheading 2933.99.97)

This HTS code, 9902.06.98, specifically classifies the chemical compound 5-Amino-1,2-dihydro-3H-1,2,4-triazole-3-thione, identified by CAS No. 16691-43-3. This classification falls under Chapter 99 of the Harmonized Tariff Schedule, which pertains to temporary legislation, temporary modifications proclaimed pursuant to trade agreements, and additional import restrictions proclaimed pursuant to Section 22 of the Agricultural Adjustment Act. Consequently, goods entered under this code are subject to special import provisions and potential restrictions beyond standard tariff classifications.

The primary purpose of this specific classification is to allow for the regulated importation of this particular chemical. It is provided for under subheading 2933.99.97, indicating it is a heterocyclic compound containing a nitrogen atom, but its placement within Chapter 99 signifies a unique trade policy or control measure is in effect. Unlike the broad categories of live animals found in earlier chapters (e.g., 0101 for horses or 0102 for bovine animals), this code targets a single, precisely defined chemical substance.

As this is a leaf node within the HTS database, there are no further subcategories. Therefore, classification decisions for 5-Amino-1,2-dihydro-3H-1,2,4-triazole-3-thione will rely entirely on the specific rulings and conditions associated with HTS code 9902.06.98, as well as the underlying provision referenced in subheading 2933.99.97. Importers must consult relevant U.S. Customs and Border Protection (CBP) rulings and regulations to ensure compliance with any applicable quotas, duties, or specific entry requirements.