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

2933.72.00.00 - Clobazam (INN) and methyprylon (INN)

Details

FieldValue
Unit of Quantitykg
General Rate of DutyFree
Special Rate of DutyN/A
Column 2 Rate of Duty15.4¢/kg + 52%
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category, 2933.72.00.00, specifically covers the pharmaceutical substances Clobazam (INN) and Methyprylon (INN). These are nitrogen-containing heterocyclic compounds that fall under the sub-classification of lactams. Their primary function is medicinal, and their inclusion within this tariff line is based on their chemical identity as defined by their International Nonproprietary Names (INN).

Unlike the sibling category 2933.71.00.00, which is dedicated to 6-Hexanelactam (also known as ε-Caprolactam) – a widely used industrial chemical primarily for polymer production – this category is exclusively for specific pharmaceutical lactams. The distinction lies in both chemical structure and intended use, with 2933.72.00.00 reserved for those recognized for their therapeutic properties.

As this classification represents a leaf node, there are no further subcategories. Classification at this level is definitive for Clobazam and Methyprylon, meaning that goods falling under these INNs will be exclusively classified here, provided they meet the general criteria of being organic chemicals within the lactam family.

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