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Etiocholanolone

Also known as: 5β-Androsterone, 3α-Hydroxy-5β-androstan-17-one, Etiocholan-3α-ol-17-one, 3α-Etiocholanolone, 5-Isoandrosterone, Androstan-17-one, 3-hydroxy-, (3α,5β)-, 5β-Androstane-3α-ol-17-one, 5β-Androstan-17-one, 3α-hydroxy-, Androsterone, (5β)-, EINECS 200-835-2, MFCD00064133

Etiocholanolone (CAS 53-42-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H30O2 and a molecular weight of 290.440 g/mol. Key properties include a melting point of 148~150°C (lit.), a boiling point of 413.1±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 176.4±21.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
53-42-9
Jingsj CID
J-21487-9
Molecular Formula
C19H30O2
Molecular Weight
290.440 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point148~150°C (lit.)
Boiling Point413.1±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point176.4±21.3 °C
Exact Mass290.224579
PSA37.30000
LogP3.75
Vapor Pressure0.0±2.2 mmHg at 25°C
Refractive Index1.536
Storage Conditions2-8°C

Activity & Biological Data

Additional Information[1]. Ping Li,et al. Natural and Enantiomeric Etiocholanolone Interact With Distinct Sites on the Rat alpha1beta2gamma2L GABAA Receptor. Mol Pharmacol. 2007 Jun;71(6):1582-90. [2]. Dorota Zolkowska, et al. Anticonvulsant Potencies of the Enantiomers of the Neurosteroids Androsterone and Etiocholanolone Exceed Those of the Natural Forms. Psychopharmacology (Berl). 2014 Sep;231(17):3325-32.

Frequently Asked Questions

What is the CAS number of Etiocholanolone?

The CAS number of Etiocholanolone is 53-42-9.

What are the molecular formula and molecular weight of Etiocholanolone?

Etiocholanolone has molecular formula C19H30O2 and molecular weight 290.440 g/mol.

What are the upstream and downstream products of Etiocholanolone?

For Etiocholanolone, Upstream Products: 5β-Androstane-3,17-dione, 5α-Androstane-3β,17β-diol, Androstenedione; Downstream Products: (3α,5β,20S)-Pregnane-3,20-diol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Etiocholanolone (CAS 53-42-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21487-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.