HTS 2937.90 (2937.90.00) duty rate
2937.90.00 is not a rated tariff line. Subheading 2937.90 (Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones › Other) is split into 6 tariff lines, and the duty rate depends on which one your product falls under:
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 2937.90.05 | Catecholamine hormones, their derivatives and structural analogues: Epinephrine | Free | none | |
| 2937.90.10 | Other: Epinephrine hydrochloride | Free | none | |
| 2937.90.20 | Other: Other | Free | none | |
| 2937.90.40 | l-Thyroxine (Levothyroxine), sodium | Free | none | |
| 2937.90.45 | Amino-acid derivatives: Other | Free | none | |
| 2937.90.90 | Other: Other | Free | none |
Open the line that matches your product for its full rate table, Section 301 actions, exclusions, statistical suffixes and a free duty calculator.
Subheading 2937.90 at a glance
- 6 rated tariff lines; 6 duty-free at the general (MFN) rate.
- Section 301 (products of China): 0 of 6 lines on a list in effect.
Heading 2937 · Chapter 29 · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC); not legal or customs advice. Classification is decided by CBP.
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