Chapter 29: Organic chemicals

HTS heading 2937: Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof,…

38 numbered lines under heading 2937, including 29 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 2937
HTS codeDescriptionUnitGeneralSpecialColumn 2
2937Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:
Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues:
2937.11.00.00Somatotropin, its derivatives and structural analoguesgFree10%
2937.12.00.00Insulin and its saltsgFree10%
2937.19.00.00OthergFree25%
Steroidal hormones, their derivatives and structural analogues:
2937.21.00Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)Free25%
2937.21.00.10Cortisoneg
2937.21.00.20Hydrocortisoneg
2937.21.00.30Prednisoneg
2937.21.00.40Prednisoloneg
2937.22.00Halogenated derivatives of adrenal cortical hormonesFree25%
2937.22.00.10Dexamethasone (INN) and its saltsg
2937.22.00.90Otherg
2937.23Estrogens and progestins:
2937.23.10Obtained directly or indirectly from animal or vegetable materialsFree25%
2937.23.10.10Estrogensg
Other:
2937.23.10.20Progesteronekg
2937.23.10.50Otherkg
Other:
2937.23.25.00Estradiol benzoate; and Estradiol cyclopentylpropionate (Estradiol cypionate)gFree15.4¢/kg + 49%
2937.23.50OtherFree15.4¢/kg + 78.5%
2937.23.50.10Estrogensg
Other:
2937.23.50.20Progesteroneg
2937.23.50.50Otherg
2937.29Other:
2937.29.10.00Desonide; andNandrolone phenproprionategFree15.4¢/kg + 49%
2937.29.90OtherFree25%
2937.29.90.20Salts and esters of hydrocortisoneg
2937.29.90.30Salts and esters of prednisoneg
2937.29.90.40Salts and esters of prednisoloneg
2937.29.90.50Anabolic agents and androgensg
2937.29.90.95Otherg
2937.50.00.00Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analoguesgFree25%
2937.90Other:
Catecholamine hormones, their derivatives and structural analogues:
2937.90.05.00EpinephrinegFree15.4¢/kg + 49%
Other:
2937.90.10.00Epinephrine hydrochloridegFree15.4¢/kg + 49%
2937.90.20.00OthergFree25%
Amino-acid derivatives:
2937.90.40.00l-Thyroxine (Levothyroxine), sodiumkgFree15.4¢/kg + 49%
2937.90.45.00OthergFree25%
2937.90.90.00OthergFree25%
XII. GLYCOSIDES AND ALKALOIDS, NATURAL OR REPRODUCED BY SYNTHESIS, AND THEIR SALTS, ETHERS, ESTERS AND OTHER DERIVATIVES

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.