Formestane
Also known as: 4-Androsten-4-ol-3,17-dione, 4-Hydroxy-4-androstene-3,17-dione, 4-Hydroxyandrost-4-ene-3,17-dione, 4-Hydroxyandrostenedione, 4-OH-A, 4-OHA, Lentaron, CGP-32349, Androst-4-ene-3,17-dione, 4-hydroxy-
Formestane (CAS 566-48-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H26O3 and a molecular weight of 302.408 g/mol. Key properties include a melting point of 199-202°C, a boiling point of 475.4±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 255.4±25.2 °C. It is classified under GHS with signal word Danger and hazard statements H360 — May damage fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 566-48-3
- Jingsj CID
- J-8142-5
- Molecular Formula
- C19H26O3
- Molecular Weight
- 302.408 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 199-202°C |
|---|---|
| Boiling Point | 475.4±45.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 255.4±25.2 °C |
| Exact Mass | 302.188202 |
| PSA | 54.37000 |
| LogP | 2.66 |
| Vapor Pressure | 0.0±2.7 mmHg at 25°C |
| Refractive Index | 1.570 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H360 — May damage fertility or the unborn child
Frequently Asked Questions
What is the CAS number of Formestane?
The CAS number of Formestane is 566-48-3.
What are the molecular formula and molecular weight of Formestane?
Formestane has molecular formula C19H26O3 and molecular weight 302.408 g/mol.
Is Formestane hazardous?
Formestane has GHS signal word Danger and hazard statements H360 — May damage fertility or the unborn child.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Formestane (CAS 566-48-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8142-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.