2937 · Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:
This is a category heading rather than a rate line — pick one of the codes below to see its full duty stack.
Subordinate codes (9)
| Code | Description |
|---|---|
| 2937.11.00.00 | Somatotropin, its derivatives and structural analogues |
| 2937.12.00.00 | Insulin and its salts |
| 2937.19.00.00 | Other |
| 2937.21.00 | Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone) |
| 2937.22.00 | Halogenated derivatives of adrenal cortical hormones |
| 2937.23 | Estrogens and progestins: |
| 2937.29 | Other: |
| 2937.50.00.00 | Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues |
| 2937.90 | Other: |
Frequently asked
- What does 2937 cover?
- Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:. This is a heading-level category with several subordinate codes — open one to see its full duty breakdown.
- Where does this data come from?
- Codes and MFN base rates come from the full USITC HTS 2026 Rev.11 export. Section 301/232/122 surcharge mappings are approximated pending code-level review. Every rate carries a source_url and effective_from, so you can trace it back to the controlling notice.