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

2937.23.50.10 - Estrogens 🖩

Details

FieldValue
Unit of Quantityg
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)N/A
Column 2 Rate of Duty15.4¢/kg + 78.5%
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 classification, HTS Code 2937.23.50.10, specifically encompasses "Estrogens." Estrogens are a group of steroid hormones that play a crucial role in the development and regulation of the female reproductive system and secondary sex characteristics. This category covers natural estrogens extracted from biological sources, as well as synthetic estrogens and their structural analogues that are produced through chemical synthesis but retain similar physiological activity. The primary use of these substances is for their hormonal effects.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. The distinction from potential sibling categories would lie in the specific type of steroidal hormone. For instance, it is distinct from progestins, which are another class of steroidal hormones with different physiological functions, even though both are grouped under the broader heading of "Estrogens and progestins." The classification here is precise to estrogenic compounds.

The classification of goods under HTS Code 2937.23.50.10 is determined by their chemical structure and primary function as estrogens. This includes a wide array of compounds, such as estradiol, estrone, and estriol, along with their various derivatives and synthetic counterparts designed for pharmaceutical, research, or other industrial applications. Importers and exporters must ensure that documentation accurately reflects the nature and intended use of these substances to facilitate proper customs clearance.

Frequently Asked Questions

›What is HTS code 2937.23.50.10?
HTS code 2937.23.50.10 covers Estrogens under the US Harmonized Tariff Schedule. It falls under Chapter 29: Organic chemicals.
›What products are classified under 2937.23.50.10?
This classification covers Estrogens. It is a subcategory of Other (2937.23.50).
›What is the import duty rate for 2937.23.50.10?
The general rate of duty for HTS 2937.23.50.10 is Free. The Column 2 rate is 15.4¢/kg + 78.5%.
›What unit of quantity is used for 2937.23.50.10?
Imports under HTS 2937.23.50.10 are measured in g.

Stay Updated

Join our newsletter to get all updates of the harmonized Tariff Schedule.