💾 Data Updated: 2025 HTS Revision 30 • Last updated: November 24, 2025

9902.02.97 - Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate (CAS No. 71501-16-1) (provided in subheading 2917.39.04)

Details

FieldValue
Unit of QuantityN/A
General Rate of DutyFree
Special Rate of DutyNo change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category, 9902.02.97, encompasses a specific chemical compound: Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate, identified by CAS Number 71501-16-1. While its base chemical structure falls under subheading 2917.39.04, this particular HTS code represents a temporary or special classification, as indicated by its placement within Chapter 99. This chapter is reserved for temporary legislation and modifications related to trade agreements and additional import restrictions under Section 22 of the Agricultural Adjustment Act.

Unlike the broader categories found in the initial chapters of the HTS, which classify goods by general type such as live animals or agricultural products, 9902.02.97 is highly specific to a single chemical substance. Its distinction from other sibling categories at this level lies in its origin and purpose within the HTS framework. Chapter 99 classifications are dynamic and subject to change based on trade policy and legislative actions, differentiating them from the more static classifications found in earlier chapters that are based on inherent product characteristics.

As this is a leaf node, there are no further subcategories. Classification under 9902.02.97 is final at this level, implying that any goods meeting the precise description of Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate will be classified here under the prevailing temporary or special provision, rather than a more general chemical classification. The key criterion for classification is the definitive identity of the imported substance as Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate, subject to the specific conditions or restrictions associated with this Chapter 99 provision.

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