Eltanolone
Also known as: Pregnanolone, 3α-hydroxy-5β-pregnan-20-one, 3alpha-hydroxy-5beta-pregnan-20-one, 5β-Pregnan-3α-ol-20-one, 5B-Pregnan-3α-ol-20-one, Pregnan-3α-ol-20-one, (3α,5β)-3-Hydroxypregnan-20-one, 3alpha,5beta-Pregnanolone, 3alpha,5beta-Epimeric pregnanolone, 3a,5b-Epimeric pregnanolone, Pregnanolone II, SKF 6455, Kabi 2213, NSC 82867
Eltanolone (CAS 128-20-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H34O2 and a molecular weight of 318.493 g/mol. Key properties include a melting point of 149ºC, a boiling point of 431.2±18.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 183.9±13.8 °C. It is classified under GHS with signal word Warning and hazard statements H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 128-20-1
- Jingsj CID
- J-7668-6
- Molecular Formula
- C21H34O2
- Molecular Weight
- 318.493 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 149ºC |
|---|---|
| Boiling Point | 431.2±18.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 183.9±13.8 °C |
| Exact Mass | 318.255890 |
| PSA | 37.30000 |
| LogP | 4.89 |
| Vapor Pressure | 0.0±2.3 mmHg at 25°C |
| Refractive Index | 1.524 |
GHS Safety & Compliance
- H351 — Suspected of causing cancer
Frequently Asked Questions
What is the CAS number of Eltanolone?
The CAS number of Eltanolone is 128-20-1.
What are the molecular formula and molecular weight of Eltanolone?
Eltanolone has molecular formula C21H34O2 and molecular weight 318.493 g/mol.
Is Eltanolone hazardous?
Eltanolone has GHS signal word Warning and hazard statements H351 — Suspected of causing cancer.
What are the upstream and downstream products of Eltanolone?
For Eltanolone, Upstream Products: N-hexane, Progesterone, (3α,5β,20S)-Pregnane-3,20-diol; Downstream Products: (3α,5β,20S)-Pregnane-3,20-diol, Etiocholanolone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Eltanolone (CAS 128-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7668-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.