(20R)-20-hydroxypregn-4-en-3-one

20β-羟基黄体酮

Also known as: 4-PREGNEN-20-BETA-OL-3-ONE, 20-BETA-HYDROXYPROGESTERONE, 20-BETA-DIHYDROPROGESTERONE, (20R)-Dihydroprogesterone, Progesterone EP Impurity C, 20-beta-dihydroprogesterone, 20-beta-hydroxy-pregn-4-en-3-one, 20-BETA-HYDROXY-4-PREGNEN-3-ONE, 4-pregnen-20B-ol-3-one

(20R)-20-hydroxypregn-4-en-3-one (CAS 145-15-3) is a compound in the Ketones 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 4-PREGNEN-20-BETA-OL-3-ONE, 20-BETA-HYDROXYPROGESTERONE and 20-BETA-DIHYDROPROGESTERONE. Key properties include a boiling point of 451.7ºC at 760 mmHg, a density of 1.09 g/cm3 and a flash point of 192.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 145-15-3
Jingsj CID: J-16590-1
Molecular Formula: C₂₁H₃₂O₂
Chinese Name: 20β-羟基黄体酮
Molecular Weight: 316.47800 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	451.7ºC at 760 mmHg
Density	1.09 g/cm3
Flash Point	192.4ºC

Frequently Asked Questions

What is the CAS number of (20R)-20-hydroxypregn-4-en-3-one?

The CAS number of (20R)-20-hydroxypregn-4-en-3-one is 145-15-3.

What are the molecular formula and molecular weight of (20R)-20-hydroxypregn-4-en-3-one?

(20R)-20-hydroxypregn-4-en-3-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. "(20R)-20-hydroxypregn-4-en-3-one (CAS 145-15-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16590-1 (accessed 2026-10-25).

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