Cortisone

Cortisone is a 21-carbon steroid hormone. Its chemical name is 17-hydroxy-11-dehydrocorticosterone. It is one of the main hormones released by the adrenal gland in response to stress.

Cortisone
IUPAC name	(8S,9S,10R,13S,14S,17R)-17-Hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-1,2,6,7,8,9,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,11-dione
Other names	17α,21-Dihydroxypregn-4-ene-3,11,20-trione; 17α,21-Dihydroxy-11-ketoprogesterone; 17α-Hydroxy-11-dehydrocorticosterone
Identifiers
CAS number	53-06-5
PubChem	222786
KEGG	D07749
MeSH	Cortisone
ChEBI	CHEBI:16962
SMILES	O=C(CO)[C@@]3(O)CC[C@H]2[C@@H]4CC\C1=C\C(=O)CC[C@]1(C)[C@H]4C(=O)C[C@@]23C
InChI InChI=1/C21H28O5/c1-19-7-5-13(23)9-12(19)3-4-14-15-6-8-21(26,17(25)11-22)20(15,2)10-16(24)18(14)19/h9,14-15,18,22,26H,3-8,10-11H2,1-2H3/t14-,15-,18+,19-,20-,21-/m0/s1
Properties
Molecular formula	C21H28O5
Molar mass	360.42 g mol-1
Melting point	220 to 224 °C,  K,  °F
Pharmacology
ATC code
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

In chemical structure, it is closely related to cortisol. It is used to treat a variety of ailments and can be administered in various ways. Cortisone suppresses the immune system. This reduces inflammation, pain and swelling at the site of the injury. Long-term use of cortisone has risks.

Tadeus Reichstein, E.C. Kendall and P.S. Hench were awarded the Nobel Prize in Physiology or Medicine in 1950 for their discovery of cortisone.