HTSUS, United States

2939.80.00.10

Saxitoxin

Classification path

  1. Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives
  2. Other
  3. Saxitoxin

Rates of duty

General (MFN)
6.5%
Column 2Cuba, North Korea, Russia, Belarus
30.5%
Unit of quantity
kg

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, K, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 2939

About heading 2939

Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives

Heading 2939 covers alkaloids, whether extracted from plants or reproduced by synthesis, plus their salts, ethers, esters and other derivatives. The heading is split first by the plant source or alkaloid family: opium, cinchona, caffeine, ephedra, theophylline and aminophylline, rye ergot, other vegetal origin, and a residual other group. Most lines in this heading are free of general (MFN) duty; the residual 2939.80 lines carry 6.5%.

Full guide to heading 2939

Products in this heading

  • Caffeine powder and caffeine salts
  • Ephedrine and pseudoephedrine salts
  • Quinine and quinine salts
  • Theophylline and aminophylline
  • Ergotamine and ergometrine
  • Morphine, codeine and oxycodone salts
  • Atropine and its salts
  • Saxitoxin

Frequently asked questions

What is the HTS code for caffeine?

Caffeine and its salts are classified under 2939.30.00.00, at a general (MFN) rate of Free.

What is the duty on pseudoephedrine and its salts?

Pseudoephedrine (INN) and its salts fall under 2939.42.00.00, at a general (MFN) rate of Free.

How do I classify saxitoxin?

Saxitoxin is named in 2939.80.00.10, which carries a general (MFN) rate of 6.5%.

Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.

HTS 2939.80.00.10: Saxitoxin, 6.5% duty | HTSBase