Hydrocortisone 21-butyrate

Also known as: 11beta,17,21-trihydroxypregn-4-ene-3,20-dione 21-butyrate, 11β,17-Dihydroxy-21-(1-oxobutoxy)pregn-4-ene-3,20-dione, HB21, Hydrocortisone Acetate Impurity 45, Hydrocortisone Acetate Impurity 8, Pregn-4-ene-3,20-dione, 11,17-dihydroxy-21-(1-oxobutoxy)-, (11β)-, cortisol 21-butyrate, hydrocortisone butyrate, hydrocortisone-21-butyrate, 11β,17,21-trihydroxypregn-4-ene-3,20-dione 21-butyrate, (11β)-11,17-Dihydroxy-21-(1-oxobutoxy)pregn-4-ene-3,20-dione

Hydrocortisone 21-butyrate (CAS 6677-99-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C25H36O6 and a molecular weight of 432.55000 g/mol. Key properties include a melting point of 191-193ºC, a boiling point of 594.8ºC at 760 mmHg, a density of 1.23g/cm3 and a flash point of 197.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6677-99-2

Jingsj CID

J-896457-6

Molecular Formula

C₂₅H₃₆O₆

Molecular Weight

432.55000 g/mol

Category

Organic Acids

Last updated

8/21/2026