5alpha-Pregnane-3beta,11beta,21-triol-20-one

5α-孕烷-3β,11β,21-三醇-20-酮

Also known as: 3beta,11beta,21-Trihydroxy-5alpha-pregnan-20-one, Allopregnane-3beta,11beta,21-triol-20-one, Reichstein's substance R, Epiallotetrahydro 'B', 3beta,5alpha-Tetrahydrocorticosterone, 3beta-Allotetrahydrocorticosterone, 1-[(3S,5S,8S,9S,10S,11S,13S,14S,17S)-3,11-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-hydroxyethanone

5alpha-Pregnane-3beta,11beta,21-triol-20-one (CAS 516-16-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H34O4 and a molecular weight of 350.49200 g/mol. It is also known as 3beta,11beta,21-Trihydroxy-5alpha-pregnan-20-one, Allopregnane-3beta,11beta,21-triol-20-one and Reichstein's substance R. Key properties include a boiling point of 509.6ºC at 760 mmHg, a density of 1.18g/cm3 and a flash point of 276.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

516-16-5

Jingsj CID

J-1356170-3

Molecular Formula

C₂₁H₃₄O₄

Chinese Name

5α-孕烷-3β,11β,21-三醇-20-酮

Molecular Weight

350.49200 g/mol

Category

Alcohols

Last updated

8/21/2026