Ethylestrol is a synthetic anabolic-androgenic steroid and a derivative of testosterone. It belongs to the 19-nortestosterone class of steroidal compounds and has been used historically for its anabolic and androgenic properties.
Ethylestrol has been associated with pharmaceutical applications involving anabolic and hormonal activity. Its use and regulatory status vary by country and formulation.
Ethylestrol is a synthetic steroid structurally related to nandrolone and other 19-nor steroid compounds. It possesses both anabolic and androgenic activity.
CAS Number: 965-90-2
Molecular Formula: C₂₁H₃₂O
Molecular Weight: 300.48 g/mol
Ethylestrol acts through the androgen receptor, producing effects associated with androgenic and anabolic steroid activity.
Its pharmacological effects may include:
Ethylestrol has historically been associated with applications involving:
The exact therapeutic application depends on the formulation, country and applicable regulatory approval.
Ethylestrol is a steroidal pharmaceutical ingredient with defined chemical and physical characteristics. Pharmaceutical-grade material requires appropriate control of identity, assay, related substances and other quality attributes.
Typical quality evaluation may include:
Pharmaceutical-grade Ethylestrol should comply with the applicable approved specification and relevant regulatory requirements.
A qualified supplier should provide Certificate of Analysis (CoA), specification sheet, SDS/MSDS, batch traceability and applicable regulatory documentation.
Store Ethylestrol in a tightly closed container, protected from excessive moisture, heat and direct light, according to the manufacturer's approved storage and stability requirements.
| Parameter | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification | IR & HPLC compliant |
| Assay (HPLC) | 98.0% – 102.0% |
| Loss on Drying | NMT 0.5% |
| Residue on Ignition | NMT 0.2% |
| Heavy Metals | NMT 10 ppm |
| pH (1% Solution) | 2.0 – 3.0 |