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

2932 - Heterocyclic compounds with oxygen hetero-atom(s) only:

Sub-classifications

Commodity Code
Description

Overview

This category, HTS Code 2932, encompasses a broad range of organic compounds characterized by the presence of at least one heterocyclic ring where the sole hetero-atom is oxygen. These compounds are distinct from other organic chemicals found in Chapter 29 by their specific ring structure, which excludes nitrogen, sulfur, or other hetero-atoms. Examples include furans, pyrans, and their hydrogenated derivatives, as well as lactones, which are cyclic esters.

Distinguishing this category from its siblings is crucial for accurate classification. Unlike categories focused on simple hydrocarbons, alcohols, or carbonyl compounds, HTS 2932 specifically targets molecules built around oxygen-containing rings. Furthermore, it differs from heterocyclic compounds containing other hetero-atoms (such as nitrogen in Chapter 2933 or sulfur in Chapter 2934) by its exclusive reliance on oxygen within the heterocyclic structure.

Within HTS 2932, further subdivisions exist to refine classification based on specific structural features. These subcategories typically differentiate between compounds based on whether they contain an unfused furan ring, lactones, or other types of heterocyclic compounds with oxygen hetero-atoms. This hierarchical structure allows for the precise identification and tariff treatment of a wide array of specialized organic chemicals used in various industries, including pharmaceuticals, plastics, and agriculture.

Go up to Chapter 29: Organic chemicals

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