HTS US: 2937.XX.XXXX
Description
This heading encompasses a broad range of biologically active compounds, including natural hormones, prostaglandins, thromboxanes, leukotrienes, and their synthetic reproductions. It also covers derivatives and structural analogues such as chain-modified polypeptides primarily used as hormones in medical and pharmaceutical applications.
Key categories within this code include:
- Peptide Hormones: Including somatotropin (growth hormone) and its structural analogues.
- Insulins and Salts: Various forms of insulin used for diabetes treatment.
- Corticosteroids: Such as cortisone, hydrocortisone, prednisone, and prednisolone, including their halogenated derivatives and salts/esters.
- Sex Hormones: Estrogens and progestins, both naturally derived and synthetic, including specific esters like estradiol benzoate and estradiol cypionate.
- Other Hormonal Agents: Anabolic agents, androgens, and other miscellaneous hormones.
- Prostaglandins, Thromboxanes, Leukotrienes: Their derivatives and structural analogues used in various therapeutic contexts.
- Miscellaneous Others: Epinephrine and levothyroxine (thyroxine), among others.
Code Hierarchy
- Section VI: Products of the Chemical or Allied Industries (Chapters 28-38)
- Chapter 29: Organic Chemicals
- Heading 2937: Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof.
- US HTS Code (10-digit):
2937.XX.XXXX– The last digits specify exact compounds or derivative types.
Detailed Breakdown of Subheadings
The heading 2937 is subdivided into precise 8- and 10-digit codes reflecting specific hormone types and their derivatives:
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2937.11.00.00 | Somatotropin, its derivatives and structural analogues | Includes natural and synthetic growth hormones used in medicine and animal husbandry. |
| 2937.12.00.00 | Insulin and its salts | Various insulin formulations for diabetes treatment. |
| 2937.19.00.00 | Other | Other peptide hormones and analogues not elsewhere specified. |
| 2937.21.00.10 | Cortisone | Used as an anti-inflammatory corticosteroid. |
| 2937.21.00.20 | Hydrocortisone | Common corticosteroid for inflammation and allergy treatment. |
| 2937.21.00.30 | Prednisone | Potent corticosteroid often used in immune system suppression. |
| 2937.21.00.40 | Prednisolone | Active metabolite of prednisone with similar uses. |
| 2937.22.00.00 | Halogenated derivatives of adrenal cortical hormones | Modified corticosteroids with halogen atoms to enhance activity. |
| 2937.23.10.10 | Estrogens obtained directly or indirectly from animal or vegetable materials | Natural estrogens used in hormone therapies. |
| 2937.23.10.20 | Progesterone obtained directly or indirectly from animal or vegetable materials | Natural progesterone primarily for reproductive health. |
| 2937.23.10.50 | Other estrogens and progestins obtained from natural sources | Includes less common steroid hormones. |
| 2937.23.25.00 | Estradiol benzoate; and Estradiol cyclopentylpropionate (Estradiol cypionate) | Specific esterified estrogens used in prolonged hormone therapy. |
| 2937.23.50.10 | Other estrogens | Synthetic or modified estrogens not from natural sources. |
| 2937.23.50.20 | Other progesterone | Synthetic or modified progesterone derivatives. |
| 2937.23.50.50 | Other estrogens and progestins | Miscellaneous related steroid hormones. |
| 2937.29.10.00 | Desonide; and Nandrolone phenproprionate | Topical corticosteroid and anabolic steroid respectively. |
| 2937.29.90.20 | Salts and esters of hydrocortisone | Modified forms for pharmaceutical formulations. |
| 2937.29.90.30 | Salts and esters of prednisone | Pharmaceutical derivatives enhancing bioavailability. |
| 2937.29.90.40 | Salts and esters of prednisolone | Pharmaceutical formulations of prednisolone. |
| 2937.29.90.50 | Anabolic agents and androgens | Compounds used to promote muscle growth and male characteristics. |
| 2937.29.90.95 | Other | Miscellaneous hormonal agents not specified above. |
| 2937.50.00.00 | Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues | Bioactive lipids involved in inflammatory and vascular processes. |
| 2937.90.05.00 | Epinephrine | Hormone and neurotransmitter used in cardiac arrest and allergy treatment. |
| 2937.90.10.00 | Epinephrine hydrochloride | Salt form for pharmaceutical use. |
| 2937.90.20.00 | Other | Miscellaneous other compounds in this category. |
| 2937.90.40.00 | l-Thyroxine (Levothyroxine), sodium | Thyroid hormone analogue used for hypothyroidism. |
| 2937.90.45.00 | Other | Additional thyroid and related hormone derivatives. |
| 2937.90.90.00 | Other | Catch-all for remaining compounds under this heading. |
What is NOT Classified Here?
The following substances are excluded from this heading and classified elsewhere:
- Unrelated pharmaceuticals: Non-hormonal medicinal chemicals are classified in other chapters.
- Natural extracts not chemically defined: Complex mixtures such as herbal extracts without defined hormone content.
- Proteins and enzymes not considered hormones: These fall under different headings related to biological products.
Notes
- Pharmaceutical Usage: Many compounds under this heading are critical in hormone replacement therapies, anti-inflammatory treatments, and reproductive health.
- Regulatory Control: Importation and handling of these substances are strictly regulated due to their biological activity and potential for abuse (e.g., anabolic steroids).
- Tariffs and Duties: Duty rates vary depending on the specific subheading and compound; consult current USHTS schedules for precise rates.
Declaration Example
Product: Shipment of synthetic hydrocortisone for pharmaceutical manufacturing.US HTS Code:
2937.21.00.20(Hydrocortisone)Unit of Quantity: Kilogram (kg)
General Duty Rate: Check current USHTS (Subject to pharmaceutical import regulations)
Additional Requirements: Import permits and certificates of analysis may be required.
Related HTS Codes
- HTS 2936: Antibiotics and their derivatives.
- HTS 3002: Human blood; animal blood prepared for therapeutic use.
- HTS 3003: Medicaments consisting of two or more constituents mixed together.
- HTS 3824: Chemical preparations for medical or veterinary uses.











