21-Acetoxypregnenolone

21-乙酰氧基孕烯醇酮

Also known as: 21-Acetoxy-3β-hydroxypregn-5-en-20-one, 3β,21-Dihydroxy-5-pregnen-20-one 21-acetate, 5-Pregnene-3β,21-diol-20-one 21-acetate, Pregnenolone 21-acetate, Acetoxanon, Artisone, Artisone acetate, Prebediolone acetate, NSC 66372

21-Acetoxypregnenolone (CAS 566-78-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C23H34O4 and a molecular weight of 374.51400 g/mol. It is also known as 21-Acetoxy-3β-hydroxypregn-5-en-20-one, 3β,21-Dihydroxy-5-pregnen-20-one 21-acetate and 5-Pregnene-3β,21-diol-20-one 21-acetate. Key properties include a boiling point of 500.2ºC at 760mmHg, a density of 1.15g/cm3 and a flash point of 166.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
566-78-9
Jingsj CID
J-1439399-8
Molecular Formula
C23H34O4
Chinese Name
21-乙酰氧基孕烯醇酮
Molecular Weight
374.51400 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point500.2ºC at 760mmHg
Density1.15g/cm3
Flash Point166.6ºC

Frequently Asked Questions

What is the CAS number of 21-Acetoxypregnenolone?

The CAS number of 21-Acetoxypregnenolone is 566-78-9.

What are the molecular formula and molecular weight of 21-Acetoxypregnenolone?

21-Acetoxypregnenolone has molecular formula C23H34O4 and molecular weight 374.51400 g/mol.

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

Last updated:

How to cite: Jingsj. "21-Acetoxypregnenolone (CAS 566-78-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439399-8 (accessed 2026-10-22).

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