5α-Pregnan-3α,20β-diol

5α-孕烷-3α,20β-二醇

Also known as: Allopregnane-3α,20β-diol, (3α,5α,20R)-Pregnane-3,20-diol, 3α,20β-Dihydroxy-5α-pregnane, 5-A-pregnane-3-A-20-B-diol, (3R,5S,8R,9S,10S,13S,14S,17S)-17-[(1R)-1-hydroxyethyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-ol, Pregnane-3,20-diol, (3alpha,5alpha,20R)

5α-Pregnan-3α,20β-diol (CAS 566-57-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H36O2 and a molecular weight of 320.50900 g/mol. It is also known as Allopregnane-3α,20β-diol, (3α,5α,20R)-Pregnane-3,20-diol and 3α,20β-Dihydroxy-5α-pregnane. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
566-57-4
Jingsj CID
J-1103054-4
Molecular Formula
C21H36O2
Chinese Name
5α-孕烷-3α,20β-二醇
Molecular Weight
320.50900 g/mol
Category
Alcohols
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 5α-Pregnan-3α,20β-diol?

The CAS number of 5α-Pregnan-3α,20β-diol is 566-57-4.

What are the molecular formula and molecular weight of 5α-Pregnan-3α,20β-diol?

5α-Pregnan-3α,20β-diol has molecular formula C21H36O2 and molecular weight 320.50900 g/mol.

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

Last updated:

How to cite: Jingsj. "5α-Pregnan-3α,20β-diol (CAS 566-57-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1103054-4 (accessed 2026-10-22).

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