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

2933.91.00.00 - Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (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 + 149.5%
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 classification, 2933.91.00.00, specifically covers a defined list of benzodiazepine derivatives and related psychoactive substances, along with their salts. These compounds are characterized by their heterocyclic structure containing nitrogen atoms and their primary use as pharmaceutical agents, primarily for their sedative, hypnotic, anxiolytic, anticonvulsant, and muscle relaxant properties. The "INN" designation indicates that these substances are recognized by the International Nonproprietary Name system, facilitating global identification.

It is crucial to distinguish this specific entry from its sibling category, 2933.92.00.00, which covers Azinphos-methyl, a distinct organophosphate insecticide. Unlike the pharmaceutical compounds classified here, Azinphos-methyl is primarily known for its agricultural application as a pest control agent. The existence of the "Other" subcategory at the next level (2933.99) signifies that there are other heterocyclic compounds with nitrogen hetero-atoms not explicitly listed under 2933.91 or 2933.92, which would be classified by their specific chemical structure and properties.

As this HTS code is a leaf node, there are no further subcategories. Therefore, classification into 2933.91.00.00 hinges on the precise chemical identification of the imported substance and its presence within the enumerated list of INN-designated compounds or their salts. This ensures that controlled substances with significant pharmaceutical and physiological effects are correctly categorized for import and export purposes.

Frequently Asked Questions

›What is HTS code 2933.91.00.00?
HTS code 2933.91.00.00 covers Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof under the US Harmonized Tariff Schedule. It falls under Chapter 29: Organic chemicals.
›What products are classified under 2933.91.00.00?
This classification covers Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof. It is a subcategory of Other:.
›What is the import duty rate for 2933.91.00.00?
The general rate of duty for HTS 2933.91.00.00 is Free. The Column 2 rate is 15.4¢/kg + 149.5%.
›What unit of quantity is used for 2933.91.00.00?
Imports under HTS 2933.91.00.00 are measured in kg.

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