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

2917 - Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

Sub-classifications

Commodity Code
Description

Overview

HTS Category 2917 encompasses a broad group of organic compounds characterized by the presence of multiple carboxyl (-COOH) functional groups. This classification specifically includes the acids themselves, as well as their anhydrides, halides, peroxides, and peroxyacids. The scope extends further to include derivatives that have undergone halogenation, sulfonation, nitration, or nitrosation. These compounds play significant roles as intermediates and raw materials in various chemical manufacturing processes, including the production of plastics, resins, plasticizers, and pharmaceuticals.

Unlike sibling categories within Chapter 29 that might focus on single carboxylic acids (e.g., acetic acid, Category 2915) or other classes of organic compounds such as alcohols or aldehydes, Category 2917 is distinguished by the *poly*-functional nature of its members. The presence of two or more carboxyl groups is the defining criterion for classification within this heading. Furthermore, the inclusion of anhydrides, halides, and other reactive derivatives differentiates these substances from simpler forms of polycarboxylic acids.

Within Category 2917, further subdivisions are made to distinguish between different structural arrangements of the polycarboxylic acids. The subcategories will differentiate based on whether the carbon backbone is acyclic (open-chain), cyclic (containing rings like cyclanic, cyclenic, or cycloterpenic structures), or aromatic. This structural classification is crucial for pinpointing the exact HTS code and any applicable duty rates or import regulations.

Go up to Chapter 29: Organic chemicals

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