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

9902.02.55 - (3E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No. 79-77-6) (provided for in subheading 2914.23.00)

Details

FieldValue
Unit of QuantityN/A
General Rate of Duty (Column 1 - General)Free
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 code, 9902.02.55, specifically classifies (3E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one, also known by its CAS number 79-77-6. This compound is a specific chemical substance that, for temporary import or trade agreement purposes, is subject to special provisions. Its inclusion under Chapter 99 signifies that it is subject to measures beyond standard tariff classifications, potentially related to import restrictions or temporary modifications enacted under trade legislation.

While HTS Chapter 99 covers a broad range of temporary legislation and special provisions, this particular code is highly specific, targeting a single chemical entity. It is crucial to understand that HTS codes under Chapter 99 are distinct from the standard goods classifications found in Chapters 1 through 97. Unlike sibling categories within Chapter 99 that might cover different types of temporary restrictions or goods subject to unique trade policies, 9902.02.55 is reserved exclusively for the aforementioned chemical compound.

As a leaf node, this classification does not possess subcategories. Its purpose is to provide a precise entry point for the described chemical under specific temporary legislative measures. Therefore, classification within 9902.02.55 is contingent upon the identity of the imported chemical, its CAS number, and the prevailing temporary trade regulations or agreements in effect at the time of importation, as indicated by its reference to subheading 2914.23.00.

Frequently Asked Questions

›What is HTS code 9902.02.55?
HTS code 9902.02.55 covers (3E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No. 79-77-6) (provided for in subheading 2914.23.00) 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 9902.02.55?
This classification covers (3E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No. 79-77-6) (provided for in subheading 2914.23.00). 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 9902.02.55?
The general rate of duty for HTS 9902.02.55 is Free. Special preferential rates may apply: No change. The Column 2 rate is No change.
Go up to 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

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