Natural Estrone from Equine Urine
Natural estrone is a steroidal estrogen hormone extracted directly from pregnant mare urine, a classic animal-derived source. It is a separate chemically defined organic compound that acts primarily as a hormone, meeting the scope of heading 29.37. This product is classified under tariff item 2937.23.00 as an oestrogen.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the estrone is not primarily used as a hormone or is a derivative not covered by the oestrogen subheading
Other steroidal hormones and their derivatives not elsewhere specified may fall under this alternative.
If the estrone is put up in measured doses or for retail sale for therapeutic use
Medicaments containing steroidal hormones are classified in Chapter 30 when packaged for retail sale.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the estrone is a separate chemically defined compound and not mixed with other hormones, as mixtures may fall under other headings
• Provide a certificate of analysis and origin documentation to support classification under 2937.23.00
• Verify if the product requires a Drug Identification Number (DIN) from Health Canada before importation
Related Products under Tariff item 2937.23.00
Bioidentical Progesterone Micronized Powder
Bioidentical progesterone micronized powder is derived from Mexican yam sterols and processed to mimic human corpus luteum progesterone. It is a separate chemically defined organic compound with progestogenic activity, classified under tariff item 2937.23.00 as a progestogen. This product is used primarily for hormonal therapy.
Conjugated Equine Estrogens (Premarin Active)
Conjugated equine estrogens, similar to Premarin, are natural estrogen sulfates extracted from pregnant mare urine and used in menopausal hormone replacement therapy. This product is a mixture of oestrogens, primarily estrone sulfate and equilin sulfate, and is classified under tariff item 2937.23.00. It is a natural, animal-derived hormone complex.
Diosgenin-Derived Progesterone Powder
Diosgenin-derived progesterone powder is manufactured via marker degradation of diosgenin extracted from Dioscorea species tubers. This product is a separate chemically defined organic compound with progestogenic activity, classified under tariff item 2937.23.00 as a progestogen. It is used primarily for hormonal applications.
Equilin
Equilin is a natural estrogen hormone unique to equine sources, obtained from pregnant mare urine for hormone therapy applications. It is a separate chemically defined organic compound with oestrogenic activity, falling under tariff item 2937.23.00. This product is used primarily for its hormonal effects.
Estradiol (17-beta Estradiol)
Estradiol (17-beta estradiol) is a primary natural estrogen hormone, typically obtained from animal sources or synthesized, and used primarily in hormone replacement therapy. It is a separate chemically defined organic compound with oestrogenic activity, classified under tariff item 2937.23.00. This product is a key oestrogen in medical applications.
Estradiol Benzoate API Crystals
Estradiol benzoate API crystals are an active pharmaceutical ingredient in crystalline form for compounding hormone medications. This product is a steroidal estrogen derivative, specifically an ester of estradiol, and is classified under tariff item 2937.23.00 as an oestrogen. It is used primarily for its hormonal effects.