Analysis
HTS 2939.19.50 covers other: other under heading 2939 (alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other…).
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 26% of the 1050 tariff lines in chapter 29. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
The other lines in the same group are 2939.19.10 (papaverine and its salts, duty-free) and 2939.19.20 (other: synthetic, duty-free).
Census statistics map these goods to NAICS 325411 (Medicinal and Botanical Manufacturing), an industry of 761 US establishments employing 30,382 people. That is the industry code a US manufacturer of the same product would normally use.
All 2 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2939.19.10 | Papaverine and its salts | Free |
| 2939.19.20 | Other: synthetic | Free |