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

2934.91.00.00 - Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam (INN), pemoline (INN), phendimetrazine (INN), phenmetrazine (INN) and sufentanil (INN); salts thereof 🖩

Details

FieldValue
Unit of Quantitykg
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)N/A
Column 2 Rate of Duty15.4¢/kg + 52%
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, 2934.91.00.00, specifically enumerates a list of controlled substances, primarily pharmaceuticals and their salts, that are classified as heterocyclic compounds. These include well-known compounds such as Aminorex, Brotizolam, Sufentanil, and Phendimetrazine, all of which are identified by their International Nonproprietary Names (INN). The classification hinges on the precise chemical identity of these specific named substances.

It is crucial to distinguish this category from its sibling, 2934.92.00.00, which covers "Other fentanyls and their derivatives." While Sufentanil is listed under 2934.91.00.00, this sibling category is intended for fentanyl compounds and their variations that are *not* explicitly named in 2934.91.00.00. Furthermore, 2934.99.00.00 serves as a residual category for other heterocyclic compounds not otherwise specified, underscoring the specificity required for classification under 2934.91.00.00.

As this node represents a leaf node within the HTS, there are no further subcategories. Therefore, classification within 2934.91.00.00 relies entirely on the presence and identification of the precisely listed substances, their salts, and derivatives as described. Importers and exporters must verify the exact chemical name against this specific list to ensure accurate classification.

Frequently Asked Questions

›What is HTS code 2934.91.00.00?
HTS code 2934.91.00.00 covers Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam (INN), pemoline (INN), phendimetrazine (INN), phenmetrazine (INN) and sufentanil (INN); salts thereof under the US Harmonized Tariff Schedule. It falls under Chapter 29: Organic chemicals.
›What products are classified under 2934.91.00.00?
This classification covers Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam (INN), pemoline (INN), phendimetrazine (INN), phenmetrazine (INN) and sufentanil (INN); salts thereof. It is a subcategory of Other:.
›What is the import duty rate for 2934.91.00.00?
The general rate of duty for HTS 2934.91.00.00 is Free. The Column 2 rate is 15.4¢/kg + 52%.
›What unit of quantity is used for 2934.91.00.00?
Imports under HTS 2934.91.00.00 are measured in kg.

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