Pregnenolone

孕烯醇酮

Also known as: 3β-Hydroxy-5-pregnen-20-one, 3beta-Hydroxypregn-5-en-20-one, 5-Pregnen-3β-ol-20-one, Delta5-Pregnenolone, Δ5-Pregnen-3β-ol-20-one, Pregn-5-en-20-one, 3-hydroxy-, 1-[(3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone, Pregnelone, Pregnenlolone, Prenolon

Pregnenolone (CAS 145-13-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H32O2 and a molecular weight of 316.478 g/mol. It is also known as 3β-Hydroxy-5-pregnen-20-one, 3beta-Hydroxypregn-5-en-20-one and 5-Pregnen-3β-ol-20-one. Key properties include a melting point of 188-190 °C, a boiling point of 443.3±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 188.9±21.3 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
145-13-1
Jingsj CID
J-36009-8
Molecular Formula
C21H32O2
Chinese Name
孕烯醇酮
Molecular Weight
316.478 g/mol
Category
Alcohols
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point188-190 °C
Boiling Point443.3±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point188.9±21.3 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of Pregnenolone?

The CAS number of Pregnenolone is 145-13-1.

What are the molecular formula and molecular weight of Pregnenolone?

Pregnenolone has molecular formula C21H32O2 and molecular weight 316.478 g/mol.

Is Pregnenolone hazardous?

Pregnenolone has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Pregnenolone (CAS 145-13-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36009-8 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.