💾 Data Updated: Latest version • Last updated: December 09, 2025

9902.06.99 - (4RS,5RS)-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2- oxo-1,3-thiazolidine-3-carboxamide (Hexythiazox) (CAS No. 78587-05-0) (provided for in subheading 2934.10.10)

Details

FieldValue
Unit of QuantityN/A
General Rate of Duty (Column 1 - General)1.8%
Special Rate of Duty (Column 1 - Special)No change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS category, 9902.06.99, specifically classifies the compound (4RS,5RS)-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2-oxo-1,3-thiazolidine-3-carboxamide, also known as Hexythiazox (CAS No. 78587-05-0). This substance is an acaricide, primarily used for controlling mites in agricultural settings. Its inclusion under Chapter 99 signifies it is subject to temporary legislation or modifications, potentially related to trade agreements or specific import restrictions.

Unlike the primary HTS codes in Chapter 99 which often address broader categories of goods under temporary measures, this node is highly specific to a single chemical compound. The "provided for in subheading 2934.10.10" note is crucial, indicating that while this item falls under a temporary provision, its underlying nature as a heterocyclic compound is recognized and linked to a permanent classification in Chapter 29, which deals with organic chemicals. This dual classification highlights that the temporary measure is applied to an otherwise standard chemical product.

As this is a leaf node within the HTS database, there are no further subcategories. All goods meeting the precise chemical description and CAS number are classified here. The classification hinges entirely on the identity of the chemical itself, distinguishing it from other acaricides or pesticides that would fall under different HTS codes, either within Chapter 99 or in more permanent chapters like Chapter 29 or Chapter 38, depending on their specific chemical structure and intended use.

Frequently Asked Questions

›What is HTS code 9902.06.99?
HTS code 9902.06.99 covers (4RS,5RS)-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2- oxo-1,3-thiazolidine-3-carboxamide (Hexythiazox) (CAS No. 78587-05-0) (provided for in subheading 2934.10.10) under the US Harmonized Tariff Schedule. It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What products are classified under 9902.06.99?
This classification covers (4RS,5RS)-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2- oxo-1,3-thiazolidine-3-carboxamide (Hexythiazox) (CAS No. 78587-05-0) (provided for in subheading 2934.10.10). It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What is the import duty rate for 9902.06.99?
The general rate of duty for HTS 9902.06.99 is 1.8%. Special preferential rates may apply: No change. The Column 2 rate is No change.

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