U.S. imports of alkaloids, their salts, ethers, esters and derivatives (other) (HS 293980) totaled $594K in August 2026, imported from 13 countries.
Importers of Alkaloids, Their Salts, Ethers, Esters and Derivatives (Other) paid $109K in duties in August 2026, an effective tariff rate of 18.41% of the $594K imported — duty actually collected as a share of that value, not the published tariff schedule. Alkaloids, Their Salts, Ethers, Esters and Derivatives (Other) imports of $594K in August 2026 ran 92% above the year-to-date monthly average of $309K.
Last updated: August 2026 dataA structurally diverse residual category, this heading captures alkaloids not classified elsewhere in Chapter 29, split between saxitoxin (2939800010) — a potent marine biotoxin used in neurological research and as a reference standard — and all other natural or synthetically reproduced alkaloids and their salts (2939800050). Switzerland and Italy lead US imports, with India and China also prominent. Saxitoxin is a Schedule 1 chemical under the Chemical Weapons Convention and subject to strict import controls; other compounds in the residual line span a wide range of pharmaceutical, research, and industrial applications, each potentially triggering distinct FDA or DEA requirements.
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22 shipments/mo
Saxitoxin is listed as a Schedule 1 chemical under the Chemical Weapons Convention, meaning imports require advance notification and authorization through the Commerce Department's Chemical Weapons Convention regulations, in addition to any applicable DEA or FDA requirements. Research quantities for legitimate scientific use are permitted but subject to rigorous documentation and end-use certification.
A synthetic compound classifies under 2939800050 only if it is not more specifically provided for elsewhere in Chapter 29. If the synthetic compound is chemically identical to a named alkaloid with its own subheading — such as caffeine or ephedrine — it must be classified in that specific subheading regardless of whether it was produced by synthesis or extracted from a plant source.
HSChapter 29
ImportsExports
Imports
$594KYoY · free account
Exports
$126KYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $15.2M of Alkaloids, Their Salts, Ethers, Esters and Derivatives (Other).
Through August 2026. Source: U.S. Census Bureau.
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Subheading 6 of 18 in heading 2939
Subheading 293980 · $594K of $47.4M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2939800050 | Other Alkaloids,Natral/Reprdcd by Synthes&salts | $594K | 18.41% | 57.93% | $109K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2939800050 | Other Alkaloids,Natral/Reprdcd by Synthes&salts | $126K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
China and India together supply 86% of it. China pays 19.6% duty; Spain 6.5%.
customs district
destination
entry
rate provision · imports
42.1% enters free of duty; duty collected equals 18.41% of total import value.