5α-Cholestan-3-one
Also known as: Cholestan-3-one, 5alpha-Cholestan-3-one, 5a-Cholestan-3-one, 5alpha-Cholestanone, 5α-Cholestanone, 3-Keto-5alpha-cholestane, 5α-Cholestane-3-one, (5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one, MFCD00065901, NSC 11920
5α-Cholestan-3-one (CAS 566-88-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C27H46O and a molecular weight of 386.654 g/mol. Key properties include a melting point of 127-131ºC, a boiling point of 452.9±13.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 219.3±12.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 566-88-1
- Jingsj CID
- J-90098-1
- Molecular Formula
- C27H46O
- Molecular Weight
- 386.654 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 127-131ºC |
|---|---|
| Boiling Point | 452.9±13.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 219.3±12.1 °C |
| Exact Mass | 386.354858 |
| PSA | 17.07000 |
| LogP | 9.64 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.498 |
Frequently Asked Questions
What is the CAS number of 5α-Cholestan-3-one?
The CAS number of 5α-Cholestan-3-one is 566-88-1.
What are the molecular formula and molecular weight of 5α-Cholestan-3-one?
5α-Cholestan-3-one has molecular formula C27H46O and molecular weight 386.654 g/mol.
What are the upstream and downstream products of 5α-Cholestan-3-one?
For 5α-Cholestan-3-one, Upstream Products: Dihydrocholesterol, Cholest-4-en-3-one, 5-Cholesten-3-one; Downstream Products: (5a)-Cholestane, Cholest-4-en-3-one, Dihydrocholesterol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5α-Cholestan-3-one (CAS 566-88-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-90098-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.