4-Pregnene-3beta-ol-20-one

4-孕烯-3β-醇-20-酮

Also known as: 3β-Hydroxy-4-pregnen-20-one, 3β-Hydroxyprogesterone, 3beta-Hydroxy Progesterone, 1-[(3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone

4-Pregnene-3beta-ol-20-one (CAS 566-66-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H32O2 and a molecular weight of 316.47800 g/mol. It is also known as 3β-Hydroxy-4-pregnen-20-one, 3β-Hydroxyprogesterone and 3beta-Hydroxy Progesterone. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 566-66-5
Jingsj CID: J-1024164-8
Molecular Formula: C₂₁H₃₂O₂
Chinese Name: 4-孕烯-3β-醇-20-酮
Molecular Weight: 316.47800 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-Pregnene-3beta-ol-20-one?

The CAS number of 4-Pregnene-3beta-ol-20-one is 566-66-5.

What are the molecular formula and molecular weight of 4-Pregnene-3beta-ol-20-one?

4-Pregnene-3beta-ol-20-one has molecular formula C21H32O2 and molecular weight 316.47800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Pregnene-3beta-ol-20-one (CAS 566-66-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1024164-8 (accessed 2026-10-23).

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